Toyota Avalon (XX50): Low Pressure Fuel System Pressure - Too High (P008B00). Engine Coolant Temperature / Intake Air Temperature Signal Compare Failure (P011B62). Bank 1 Air-Fuel Ratio Imbalance (Port) (P11EA00-P11EF00,P1

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Engine / 2gr-fks Engine Control / Sfi System / Low Pressure Fuel System Pressure - Too High (P008B00). Engine Coolant Temperature / Intake Air Temperature Signal Compare Failure (P011B62). Bank 1 Air-Fuel Ratio Imbalance (Port) (P11EA00-P11EF00,P1

Low Pressure Fuel System Pressure - Too High (P008B00)

DESCRIPTION

Refer to DTC P008A00.

Click here

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P008B00	Low Pressure Fuel System Pressure - Too High	Actual fuel pressure (for low pressure side) value higher than target fuel pressure (for low pressure side) by threshold or more (1 trip detection logic).	Fuel pump control ECU Fuel pressure sensor (for low pressure side) ECM	Does not come on	DTC stored	SAE Code: P008B

MONITOR DESCRIPTION

If the fuel pressure (for low pressure side) increases despite a decrease request signal being sent to the fuel pump control ECU by the ECM, the ECM will store this DTC.

MONITOR STRATEGY

Frequency of Operation

Continuous

CONFIRMATION DRIVING PATTERN

Connect the Techstream to the DLC3.
Turn the engine switch on (IG).
Turn the Techstream on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the engine switch off and wait for at least 30 seconds.
Turn the engine switch on (IG) [A].
Turn the Techstream on.
Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].
Drive the vehicle for 15 minutes or more [C].
CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.
Enter the following menus: Powertrain / Engine / Trouble Codes [D].
Read the pending DTCs.
HINT:
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Input the DTC: P008B00.

Check the DTC judgment result.

Techstream Display	Description
NORMAL	DTC judgment completed System normal
ABNORMAL	DTC judgment completed System abnormal
INCOMPLETE	DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions

HINT:

If the judgment result is NORMAL, the system is normal.
If the judgment result is ABNORMAL, the system has a malfunction.
If the judgment result is INCOMPLETE, perform steps [B] through [D] again.

CAUTION / NOTICE / HINT

HINT:

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE

1.	CHECK OTHER DTCS OUTPUT (IN ADDITION TO DTC P008B00)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Enter the following menus: Powertrain / Engine / Trouble Codes.

(e) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result	Proceed to
DTC P008B00 is output	A
DTC P008B00 and other DTCs are output	B

HINT:

If any DTCs other than P008B00 are output, troubleshoot those DTCs first.

GO TO DTC CHART

2.	READ VALUE USING TECHSTREAM (FUEL PRESSURE (LOW))

(a) Connect the Techstream to the DLC3.

(b) Start the engine.

(d) Enter the following menus: Powertrain / Engine / Data List / Fuel Pressure (Low).

Powertrain > Engine > Data List

Tester Display
Fuel Pressure (Low)

(e) Record the Fuel Pressure (Low) value.

(f) Turn the engine switch off.

(g) Discharge the fuel pressure.

HINT:

DTCs may be stored during this inspection. Check for DTCs and clear them using the Techstream.

(1) Remove the EFI-MAIN NO. 2 fuse from the No. 1 engine room relay block and No. 1 junction block assembly.

(2) Start the engine.

(3) After the engine has stopped on its own, turn the engine switch off.

HINT:

If the engine does not stop naturally, perform direct injection by racing the engine to reduce the fuel pressure [Fuel Pressure (High)] and stop the engine.

(4) Crank the engine again and make sure that the engine does not start.

(5) Install the EFI-MAIN NO. 2 fuse.

(h) Turn the engine switch on (IG).

(i) Turn the Techstream on.

(j) Enter the following menus: Powertrain / Engine / Data List / Fuel Pressure (Low).

Powertrain > Engine > Data List

Tester Display
Fuel Pressure (Low)

(k) Compare the Fuel Pressure (Low) value recorded with the engine running to the Fuel Pressure (Low) value currently shown on the Techstream.

Result	Proceed to
Fuel Pressure (Low) value drops	A
Fuel Pressure (Low) value is maintained	B

HINT:

Perform "Inspection After Repair" after replacing the fuel pressure sensor (for low pressure side).

Click here

REPLACE FUEL DELIVERY PIPE RH (FUEL PRESSURE SENSOR (FOR LOW PRESSURE SIDE))

3.	PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP DUTY RATIO)

(a) Install the fuel pressure gauge (for low pressure line of low pressure side).

Click here

(b) Connect the Techstream to the DLC3.

(d) Turn the Techstream on.

(e) Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump Duty Ratio / Data List / Fuel Pressure (Low).

Powertrain > Engine > Active Test

Active Test Display
Control the Fuel Pump Duty Ratio

Data List Display
Fuel Pressure (Low)

(f) Compare the values in the Data List using the Techstream and the fuel pressure gauge when the Active Test was performed.

Standard:

Techstream Operation	Standard
Low	Data List value and fuel pressure gauge are within +/-50 kPa of each other
High

HINT:

Perform "Inspection After Repair" after replacing the fuel pressure sensor (for low pressure side).

Click here

REPLACE FUEL DELIVERY PIPE RH (FUEL PRESSURE SENSOR (FOR LOW PRESSURE SIDE))

4.	PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP DUTY RATIO)

(a) Install the fuel pressure gauge (for low pressure line of low pressure side).

Click here

(b) Connect the Techstream to the DLC3.

(d) Turn the Techstream on.

(e) Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump Duty Ratio / Data List / Fuel Pressure (Low).

Powertrain > Engine > Active Test

Active Test Display
Control the Fuel Pump Duty Ratio

Data List Display
Fuel Pressure (Low)

(f) Read the values on the Data List and the fuel pressure gauge when the Active Test was performed.

Techstream Operation	Fuel Pressure (Low)	Fuel pressure gauge	Proceed to
Low	Below 600 kPag	Below 600 kPa (6.1 kgf/cm2, 87 psi)	A
Low	600 kPag or higher	600 kPa (6.1 kgf/cm2, 87 psi) or higher	B

REPLACE FUEL PUMP CONTROL ECU

CLEAR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Clear the DTC.

Powertrain > Engine > Clear DTCs

(e) Turn the engine switch off and wait for at least 30 seconds.

6.	CHECK WHETHER DTC OUTPUT RECURS (DTC P008B00)

(a) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

(b) Enter the following menus: Powertrain / Engine / Utility / All Readiness.

Powertrain > Engine > Utility

Tester Display
All Readiness

(d) Check the DTC judgment result.

Result	Proceed to
NORMAL (DTCs are not output)	A
ABNORMAL (DTC P008B00 is output)	B

Result

Proceed to

NORMAL

(DTCs are not output)

ABNORMAL

(DTC P008B00 is output)

CHECK FOR INTERMITTENT PROBLEMS

REPLACE ECM

Engine Coolant Temperature / Intake Air Temperature Signal Compare Failure (P011B62)

DESCRIPTION

The engine has two temperature sensors, an engine coolant temperature sensor and an intake air temperature sensor (for mass air flow meter sub-assembly), to detect temperature while the engine is operating. A thermistor, whose resistance value varies according to the temperature, is built into each sensor. When the temperature becomes low, the resistance of the thermistor increases. When the temperature becomes high, the resistance drops. These variations in resistance are transmitted to the ECM as voltage changes. Based on these temperature signals output from the sensors, the ECM determines the fuel injection duration and the ignition timing to control the engine.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P011B62	Engine Coolant Temperature / Intake Air Temperature Signal Compare Failure	All of the following conditions are met (2 trip detection logic): The battery voltage is 10.5 V or higher. 7 hours or more have elapsed since the engine stopped on the previous trip. 88 seconds or more after a cold engine start. Either of the following conditions is met: The minimum intake air temperature after the engine starts is -10°C (14°F) or higher. The engine coolant temperature before the engine starts is -10°C (14°F) or higher. The difference between the readings of the engine coolant temperature and intake air temperature is higher than 24.375°C (43.9°F).	Intake air temperature sensor (mass air flow meter sub-assembly) Engine coolant temperature sensor ECM	Comes on	DTC stored	SAE Code: P011B

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

Note

P011B62

Engine Coolant Temperature / Intake Air Temperature Signal Compare Failure

All of the following conditions are met (2 trip detection logic):

The battery voltage is 10.5 V or higher.
7 hours or more have elapsed since the engine stopped on the previous trip.
88 seconds or more after a cold engine start.
Either of the following conditions is met:
1. The minimum intake air temperature after the engine starts is -10°C (14°F) or higher.
2. The engine coolant temperature before the engine starts is -10°C (14°F) or higher.
The difference between the readings of the engine coolant temperature and intake air temperature is higher than 24.375°C (43.9°F).

Intake air temperature sensor (mass air flow meter sub-assembly)
Engine coolant temperature sensor
ECM

Comes on

DTC stored

SAE Code: P011B

HINT:

Waiting is required to prevent the temperature of the engine from affecting the readings. If the engine has been operated recently, it is not possible to accurately compare the readings.

For diagnosis, in order to duplicate the detection conditions of the DTC, it is necessary to park the vehicle for 7 hours. Parking the vehicle for 7 hours ensures that the actual temperature of the engine coolant temperature and intake air temperature (for mass air flow meter sub-assembly) are very similar. When the vehicle has been parked for less than 7 hours, differences in the readings may exist, but this does not necessarily indicate a fault.

MONITOR DESCRIPTION

The ECM monitors the difference between the engine coolant temperature and the intake air temperature (for mass air flow meter sub-assembly) when the engine is started cold to accurately detect the engine temperature conditions. The monitor runs when the engine is started after 7 hours or more have elapsed since the engine was stopped (engine switch turned off) on the previous trip. If the difference between the engine coolant temperature and the intake air temperature on a cold start exceeds 24.375°C (43.9°F), the ECM interprets this as a malfunction in the engine coolant temperature sensor circuit and intake air temperature sensor circuit, and stores this DTC.

MONITOR STRATEGY

Related DTCs	P011B: Engine coolant temperature/intake air temperature sensor correlation
Required Sensors/Components (Main)	Engine coolant temperature sensor Intake air temperature sensor (mass air flow meter sub-assembly)
Required Sensors/Components (Related)	-
Frequency of Operation	Once per driving cycle
Duration	-
MIL Operation	2 driving cycles
Sequence of Operation	None

TYPICAL ENABLING CONDITIONS

All of the following conditions are met	-
Time after engine switch on (IG) and engine not running	Less than 20 seconds
Soak Time	7 hours or more
Battery voltage	10.5 V or higher
Time after engine start	88 seconds or more
Either of the following conditions is met	(a) or (b)
(a) Minimum intake air temperature after engine start	-10°C (14°F) or higher
(b) Engine coolant temperature before engine start	-10°C (14°F) or higher
Engine coolant temperature sensor circuit fail (P0117, P0118, P0125)	Not detected
Intake air temperature sensor circuit fail (P0112, P0113)	Not detected
Mass air flow meter circuit fail (P0102, P0103)	Not detected
Soak timer fail (P2610)	Not detected

TYPICAL MALFUNCTION THRESHOLDS

Deviated engine coolant temperature and intake air temperature (for mass air flow meter sub-assembly)

Less than -24.375°C (-43.9°F), or higher than 24.375°C (43.9°F)

CONFIRMATION DRIVING PATTERN

HINT:

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
Click here
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here

Connect the Techstream to the DLC3.
Turn the engine switch on (IG) [A].
Turn the Techstream on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the engine switch off.
With the engine stopped, leave the vehicle as is for 7.5 hours or more [B].
Turn the engine switch on (IG).
Turn the Techstream on.
Start the engine and wait 100 seconds or more [C].
Enter the following menus: Powertrain / Engine / Trouble Codes [D].
Read the pending DTCs.
HINT:
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Input the DTC: P011B62.

Check the DTC judgment result.

Techstream Display	Description
NORMAL	DTC judgment completed System normal
ABNORMAL	DTC judgment completed System abnormal
INCOMPLETE	DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions

HINT:

If the judgment result is NORMAL, the system is normal.
If the judgment result is ABNORMAL, the system is malfunctioning.
If the judgment result is INCOMPLETE, perform steps [B] through [D] again.
[B] to [D]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

CAUTION / NOTICE / HINT

HINT:

PROCEDURE

1.	CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO P011B62)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Enter the following menus: Powertrain / Engine / Trouble Codes.

(e) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result	Proceed to
DTC P011B62 is output	A
DTC P011B62 and other DTCs are output	B

HINT:

If any DTCs other than P011B62 are output, troubleshoot those DTCs first.

GO TO DTC CHART

2.	READ VALUE USING TECHSTREAM (INTAKE AIR TEMPERATURE)

(a) Leave the vehicle for 7 hours or more.

HINT:

It is necessary to leave the vehicle for 7 hours or more to create conditions similar to the DTC detection conditions.

(b) Connect the Techstream to the DLC3.

(d) Turn the Techstream on.

(e) Enter the following menus: Powertrain / Engine / Data List / Intake Air Temperature.

Powertrain > Engine > Data List

Tester Display
Intake Air Temperature

(f) Read the value displayed on the Techstream.

Standard:

Difference between the intake air temperature and the actual outside air temperature is within 10°C (18°F).

HINT:

Temperature readings on the outside temperature gauge of the vehicle (if equipped) are not suitable for comparing to the intake air temperature reading. The outside temperature gauge has a significant delay built in to prevent swings in the temperature display. Use an accurate thermometer to determine the outside air temperature.
Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.
Click here

REPLACE MASS AIR FLOW METER SUB-ASSEMBLY

3.	READ VALUE USING TECHSTREAM (COOLANT TEMPERATURE)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Enter the following menus: Powertrain / Engine / Data List / Coolant Temperature.

Powertrain > Engine > Data List

Tester Display
Coolant Temperature

(e) Read the value displayed on the Techstream.

Standard:

The difference between the coolant temperature and the actual outside air temperature is within 10°C (18°F).

HINT:

If the result is not as specified, check that there are no heat sources such as a block heater in the engine compartment.
Perform "Inspection After Repair" after replacing the engine coolant temperature sensor.
Click here

REPLACE ECM

REPLACE ENGINE COOLANT TEMPERATURE SENSOR

Bank 1 Air-Fuel Ratio Imbalance (Port) (P11EA00-P11EF00,P11F000,P11F100,P219A00-P219F00,P21A000,P21A100)

DESCRIPTION

Refer to DTC P030000.

Click here

Refer to DTC P219519.

Click here

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P11EA00	Bank 1 Air-Fuel Ratio Imbalance (Port)	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Fuel injector assembly (for port injection) Fuel injector assembly (for direct injection) Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 1 sensor 1) ECM	Comes on	DTC stored	SAE Code: P11EA
P11EB00	Bank 2 Air-Fuel Ratio Imbalance (Port)	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Fuel injector assembly (for port injection) Fuel injector assembly (for direct injection) Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 2 sensor 1) ECM	Comes on	DTC stored	SAE Code: P11EB
P11EC00	Cylinder #1 Air-Fuel Ratio Imbalance (Port)	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Fuel injector assembly (for port injection) Fuel injector assembly (for direct injection) Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 1 sensor 1) ECM	Comes on	DTC stored	SAE Code: P11EC
P11ED00	Cylinder #2 Air-Fuel Ratio Imbalance (Port)	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Fuel injector assembly (for port injection) Fuel injector assembly (for direct injection) Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 2 sensor 1) ECM	Comes on	DTC stored	SAE Code: P11ED
P11EE00	Cylinder #3 Air-Fuel Ratio Imbalance (Port)	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Fuel injector assembly (for port injection) Fuel injector assembly (for direct injection) Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 1 sensor 1) ECM	Comes on	DTC stored	SAE Code: P11EE
P11EF00	Cylinder #4 Air-Fuel Ratio Imbalance (Port)	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Fuel injector assembly (for port injection) Fuel injector assembly (for direct injection) Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 2 sensor 1) ECM	Comes on	DTC stored	SAE Code: P11EF
P11F000	Cylinder #5 Air-Fuel Ratio Imbalance (Port)	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Fuel injector assembly (for port injection) Fuel injector assembly (for direct injection) Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 1 sensor 1) ECM	Comes on	DTC stored	SAE Code: P11F0
P11F100	Cylinder #6 Air-Fuel Ratio Imbalance (Port)	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Fuel injector assembly (for port injection) Fuel injector assembly (for direct injection) Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 2 sensor 1) ECM	Comes on	DTC stored	SAE Code: P11F1
P219A00	Bank 1 Air-Fuel Ratio Imbalance	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Fuel injector assembly (for port injection) Fuel injector assembly (for direct injection) Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 1 sensor 1) ECM	Comes on	DTC stored	SAE Code: P219A
P219B00	Bank 2 Air-Fuel Ratio Imbalance	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Fuel injector assembly (for port injection) Fuel injector assembly (for direct injection) Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 2 sensor 1) ECM	Comes on	DTC stored	SAE Code: P219B
P219C00	Cylinder 1 Air-Fuel Ratio Imbalance	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Fuel injector assembly (for port injection) Fuel injector assembly (for direct injection) Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 1 sensor 1) ECM	Comes on	DTC stored	SAE Code: P219C
P219D00	Cylinder 2 Air-Fuel Ratio Imbalance	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Fuel injector assembly (for port injection) Fuel injector assembly (for direct injection) Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 2 sensor 1) ECM	Comes on	DTC stored	SAE Code: P219D
P219E00	Cylinder 3 Air-Fuel Ratio Imbalance	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Fuel injector assembly (for port injection) Fuel injector assembly (for direct injection) Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 1 sensor 1) ECM	Comes on	DTC stored	SAE Code: P219E
P219F00	Cylinder 4 Air-Fuel Ratio Imbalance	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Fuel injector assembly (for port injection) Fuel injector assembly (for direct injection) Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 2 sensor 1) ECM	Comes on	DTC stored	SAE Code: P219F
P21A000	Cylinder 5 Air-Fuel Ratio Imbalance	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Fuel injector assembly (for port injection) Fuel injector assembly (for direct injection) Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 1 sensor 1) ECM	Comes on	DTC stored	SAE Code: P21A0
P21A100	Cylinder 6 Air-Fuel Ratio Imbalance	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Fuel injector assembly (for port injection) Fuel injector assembly (for direct injection) Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 2 sensor 1) ECM	Comes on	DTC stored	SAE Code: P21A1

MONITOR DESCRIPTION

Fuel System Air Fuel Ratio Cylinder Imbalance Monitor

The ECM uses the air fuel ratio sensor and crankshaft position sensor to monitor the difference in air fuel ratios between the cylinders caused by differences in injection volumes between the cylinders, leakage in the intake or exhaust system, etc.

When the air fuel ratios of the cylinders are lean or rich with respect to each other, the ECM determines that there is a malfunction, illuminates the MIL and stores a DTC.

Air Fuel Ratio Sensor Monitoring Method: P11EA00 and/or P11EB00 (for port injection), or P219A00 and/or P219B00 (for direct injection) are stored primarily when a rich side imbalance is detected.

When the system detects a difference in air fuel ratios between the cylinders due to fluctuation in the air fuel ratio sensor output over 1 engine cycle (2 crankshaft revolutions), the system determines that there is a problem.

Crankshaft Position Sensor Monitoring Method: P11EC00, P11ED00, P11EE00, P11EF00, P11F000 and/or P11F100 (for port injection), or P219C00, P219D00, P219E00, P219F00, P21A000 and/or P21A100 (for direct injection) are stored primarily when a lean side imbalance is detected.

The system monitors the engine speed variation and when the variation becomes large, the system determines that there is a difference in air fuel ratios between the cylinders, which it determines to be a problem.

MONITOR STRATEGY

Related DTCs	P11EA: Air fuel ratio cylinder imbalance monitor (for port injection of bank 1) P11EB: Air fuel ratio cylinder imbalance monitor (for port injection of bank 2) P11EC: Air fuel ratio cylinder imbalance monitor (for port injection of cylinder 1) P11ED: Air fuel ratio cylinder imbalance monitor (for port injection of cylinder 2) P11EE: Air fuel ratio cylinder imbalance monitor (for port injection of cylinder 3) P11EF: Air fuel ratio cylinder imbalance monitor (for port injection of cylinder 4) P11F0: Air fuel ratio cylinder imbalance monitor (for port injection of cylinder 5) P11F1: Air fuel ratio cylinder imbalance monitor (for port injection of cylinder 6) P219A: Air fuel ratio cylinder imbalance monitor (for direct injection of bank 1) P219B: Air fuel ratio cylinder imbalance monitor (for direct injection of bank 2) P219C: Air fuel ratio cylinder imbalance monitor (for direct injection of cylinder 1) P219D: Air fuel ratio cylinder imbalance monitor (for direct injection of cylinder 2) P219E: Air fuel ratio cylinder imbalance monitor (for direct injection of cylinder 3) P219F: Air fuel ratio cylinder imbalance monitor (for direct injection of cylinder 4) P21A0: Air fuel ratio cylinder imbalance monitor (for direct injection of cylinder 5) P21A1: Air fuel ratio cylinder imbalance monitor (for direct injection of cylinder 6)
Required Sensors/Components (Main)	Air fuel ratio sensor Crankshaft position sensor
Required Sensors/Components (Related)	Mass air flow meter sub-assembly Engine coolant temperature sensor Vehicle speed sensor
Frequency of Operation	Once per driving cycle
Duration	20 seconds: Air fuel ratio sensor monitoring method 30 seconds: Crankshaft position sensor monitoring method
MIL Operation	2 driving cycles
Sequence of Operation	None

TYPICAL ENABLING CONDITIONS

P11EA, P11EB, P219A and P219B: Air Fuel Ratio Sensor Monitoring Method

Monitor runs whenever the following DTCs are not stored	P0010, P0020 (VVT oil control solenoid bank 1, 2) P0011, P0021 (VVT system bank 1, 2 - advance) P0012, P0022 (VVT system bank 1, 2 - retard) P0013, P0023 (Exhaust VVT oil control solenoid bank 1, 2) P0014, P0024 (Exhaust VVT system bank 1, 2 - advance) P0015, P0025 (Exhaust VVT system bank 1, 2 - retard) P0016, P0018 (VVT system bank 1, 2 - misalignment) P0017, P0019 (Exhaust VVT system bank 1, 2 - misalignment) P0031, P0032, P0051, P0052, P101D, P103D (Air fuel ratio sensor heater) P0087, P0088, P0191, P0192, P0193 (Fuel pressure sensor (for high pressure side)) P0101, P0102, P0103 (Mass air flow meter) P0117, P0118 (Engine coolant temperature sensor) P0121, P0122, P0123, P0222, P0223, P2135 (Throttle position sensor) P0125 (Insufficient coolant temperature for closed loop fuel control) P014C, P014D, P014E, P014F, P015A, P015B, P015C, P015D, P2195, P2196, P2197, P2198, P2237, P2238, P2239, P2240, P2241, P2242, P2252, P2253, P2255, P2256 (Air fuel ratio sensor) P0201, P0202, P0203, P0204, P0205, P0206, P062D, P21CF, P21D0, P21D1, P21D2, P21D3, P21D4 (Fuel injector) P0335, P0337, P0338 (Crankshaft position sensor) P0340, P0342, P0343, P0345, P0347, P0348 (Camshaft position sensor) P0351 - P0356 (Igniter) P0365, P0367, P0368, P0390, P0392, P0393 (Exhaust camshaft position sensor) P0500 (Vehicle speed sensor) P0657, P2102, P2103 (Throttle actuator) P107B, P107C, P107D (Fuel pressure sensor (for low pressure side)) P1235 (High pressure fuel pump circuit)
Air fuel ratio sensor status	Activated
Engine speed	1200 rpm or higher, and less than 2200 rpm
Engine coolant temperature	75°C (167°F) or higher
Atmospheric pressure	76 kPa(abs) [11 psi(abs)] or higher
Fuel system status	Closed loop
Engine load	45% or higher, and less than 70%

P11EC, P11ED, P11EE, P11EF, P11F0, P11F1, P219C, P219D, P219E, P219F, P21A0 and P21A1: Crankshaft Position Sensor Monitoring Method

Monitor runs whenever the following DTCs are not stored	P0010, P0020 (VVT oil control solenoid bank 1, 2) P0011, P0021 (VVT system bank 1, 2 - advance) P0012, P0022 (VVT system bank 1, 2 - retard) P0013, P0023 (Exhaust VVT oil control solenoid bank 1, 2) P0014, P0024 (Exhaust VVT system bank 1, 2 - advance) P0015, P0025 (Exhaust VVT system bank 1, 2 - retard) P0016, P0018 (VVT system bank 1, 2 - misalignment) P0017, P0019 (Exhaust VVT system bank 1, 2 - misalignment) P0087, P0088, P0191, P0192, P0193 (Fuel pressure sensor (for high pressure side)) P0101, P0102, P0103 (Mass air flow meter) P0112, P0113 (Intake air temperature sensor) P0117, P0118 (Engine coolant temperature sensor) P0121, P0122, P0123, P0222, P0223, P2135 (Throttle position sensor) P0125 (Insufficient coolant temperature for closed loop fuel control) P0201, P0202, P0203, P0204, P0205, P0206, P062D, P21CF, P21D0, P21D1, P21D2, P21D3, P21D4 (Fuel injector) P0327, P0328, P0332, P0333 (Knock control sensor) P0335, P0337, P0338 (Crankshaft position sensor) P0340, P0342, P0343, P0345, P0347, P0348 (VVT sensor) P0351 - P0356 (Igniter) P0365, P0367, P0368, P0390, P0392, P0393 (Exhaust VVT sensor) P0500 (Vehicle speed sensor) P0657, P2102, P2103 (Throttle actuator) P0705 (Shift lever position switch) P107B, P107C, P107D (Fuel pressure sensor (for low pressure side)) P1235 (High pressure fuel pump circuit)
Vehicle speed	Less than 3 km/h (1.875 mph)
Engine speed	450 rpm or higher, and less than 1100 rpm
Engine coolant temperature	75°C (167°F) or higher
Air fuel ratio sensor status	Activated
Fuel system status	Closed loop
Battery voltage	11 V or higher

TYPICAL MALFUNCTION THRESHOLDS

P11EA and P11EB: Air Fuel Ratio Sensor Monitoring Method

Air fuel ratio sensor monitoring method criteria (rich side imbalance for port injection)

1 or more

P11EC, P11ED, P11EE, P11EF, P11F0 and P11F1: Crankshaft Position Sensor Monitoring Method

Crankshaft position sensor monitoring method criteria (lean side imbalance for port injection)

1 or more

P219A and P219B: Air Fuel Ratio Sensor Monitoring Method

Air fuel ratio sensor monitoring method criteria (rich side imbalance for direct injection)

1 or more

P219C, P219D, P219E, P219F, P21A0 and P21A1: Crankshaft Position Sensor Monitoring Method

Crankshaft position sensor monitoring method criteria (lean side imbalance for direct injection)

1 or more

MONITOR RESULT

Refer to detailed information in Checking Monitor Status.

Click here

P11EA: Fuel System / A/F SENSOR DETERMINATION (Port) B1

Monitor ID	Test ID	Scaling	Unit	Description
$81	$96	Multiply by 0.001	No dimension	Monitoring method using air fuel ratio sensor (Port)

P11EB: Fuel System / A/F SENSOR DETERMINATION (Port) B2

Monitor ID	Test ID	Scaling	Unit	Description
$82	$96	Multiply by 0.001	No dimension	Monitoring method using air fuel ratio sensor (Port)

P11EC: Fuel System / ENGINE SPEED FLUCTUATION AVERAGE (Port) #1

Monitor ID	Test ID	Scaling	Unit	Description
$81	$8D	Multiply by 0.001	No dimension	Monitoring method using crank angle sensor (Port)

P11ED: Fuel System / ENGINE SPEED FLUCTUATION AVERAGE (Port) #2

Monitor ID	Test ID	Scaling	Unit	Description
$82	$8E	Multiply by 0.001	No dimension	Monitoring method using crank angle sensor (Port)

P11EE: Fuel System / ENGINE SPEED FLUCTUATION AVERAGE (Port) #3

Monitor ID	Test ID	Scaling	Unit	Description
$81	$8F	Multiply by 0.001	No dimension	Monitoring method using crank angle sensor (Port)

P11EF: Fuel System / ENGINE SPEED FLUCTUATION AVERAGE (Port) #4

Monitor ID	Test ID	Scaling	Unit	Description
$82	$90	Multiply by 0.001	No dimension	Monitoring method using crank angle sensor (Port)

P11F0: Fuel System / ENGINE SPEED FLUCTUATION AVERAGE (Port) #5

Monitor ID	Test ID	Scaling	Unit	Description
$81	$91	Multiply by 0.001	No dimension	Monitoring method using crank angle sensor (Port)

P11F1: Fuel System / ENGINE SPEED FLUCTUATION AVERAGE (Port) #6

Monitor ID	Test ID	Scaling	Unit	Description
$82	$92	Multiply by 0.001	No dimension	Monitoring method using crank angle sensor (Port)

P219A: Fuel System / A/F SENSOR DETERMINATION B1

Monitor ID	Test ID	Scaling	Unit	Description
$81	$95	Multiply by 0.001	No dimension	Monitoring method using air fuel ratio sensor (Direct)

P219B: Fuel System / A/F SENSOR DETERMINATION B2

Monitor ID	Test ID	Scaling	Unit	Description
$82	$95	Multiply by 0.001	No dimension	Monitoring method using air fuel ratio sensor for bank 2 (Direct)

P219C: Fuel System / ENGINE SPEED FLUCTUATION AVERAGE #1

Monitor ID	Test ID	Scaling	Unit	Description
$81	$85	Multiply by 0.001	No dimension	Monitoring method using crank angle sensor (Direct)

P219D: Fuel System / ENGINE SPEED FLUCTUATION AVERAGE #2

Monitor ID	Test ID	Scaling	Unit	Description
$82	$86	Multiply by 0.001	No dimension	Monitoring method using crank angle sensor (Direct)

P219E: Fuel System / ENGINE SPEED FLUCTUATION AVERAGE #3

Monitor ID	Test ID	Scaling	Unit	Description
$81	$87	Multiply by 0.001	No dimension	Monitoring method using crank angle sensor (Direct)

P219F: Fuel System / ENGINE SPEED FLUCTUATION AVERAGE #4

Monitor ID	Test ID	Scaling	Unit	Description
$82	$88	Multiply by 0.001	No dimension	Monitoring method using crank angle sensor (Direct)

P21A0: Fuel System / ENGINE SPEED FLUCTUATION AVERAGE #5

Monitor ID	Test ID	Scaling	Unit	Description
$81	$89	Multiply by 0.001	No dimension	Monitoring method using crank angle sensor (Direct)

P21A1: Fuel System / ENGINE SPEED FLUCTUATION AVERAGE #6

Monitor ID	Test ID	Scaling	Unit	Description
$82	$8A	Multiply by 0.001	No dimension	Monitoring method using crank angle sensor (Direct)

CONFIRMATION DRIVING PATTERN

HINT:

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
Click here
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here

Connect the Techstream to the DLC3.
Turn the engine switch on (IG).
Turn the Techstream on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [A].
HINT:

The A/C switch and all accessory switches should be off and the shift lever should be in P.
Drive the vehicle at 60 km/h (37 mph) or higher for 2 minutes or more [B].
CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.

HINT:

It is acceptable to turn electrical loads on while driving.
Idle the engine for 2 minutes or more [C].
HINT:

The A/C switch and all accessory switches should be off and the shift lever should be in P.
Enter the following menus: Powertrain / Engine / Trouble Codes [D].
Read the pending DTCs.
HINT:
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
- [A] to [D]: Normal judgment procedure.
  The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
- When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.
Drive the vehicle at less than 30 km/h (19 mph) for 5 seconds or more [E].
CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.
Accelerate the vehicle from 30 to 60 km/h (19 to 37 mph) over a period of approximately 10 to 20 seconds.
CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.

HINT:

Refer to the values of engine load and engine speed in Typical Enabling Conditions before accelerating the vehicle from 30 to 60 km/h (19 to 37 mph).
Drive the vehicle at 60 km/h (37 mph) or more for 5 seconds or more [F].
CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.
Drive the vehicle at less than 30 km/h (19 mph) for 5 seconds or more [G].
CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.
Accelerate the vehicle from 30 to 60 km/h (19 to 37 mph) over a period of approximately 10 to 20 seconds.
CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.

HINT:

Refer to the values of engine load and engine speed in Typical Enabling Conditions before accelerating the vehicle from 30 to 60 km/h (19 to 37 mph).
Drive the vehicle at 60 km/h (37 mph) or more for 5 seconds or more [H].
CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.
Repeat steps [G] and [H] above at least 2 times [I].
Idle the engine for 1 minute or more [J].
HINT:

The A/C switch and all accessory switches should be off and the shift lever should be in P.
Enter the following menus: Powertrain / Engine / Trouble Codes [K].
Read the pending DTCs.
HINT:
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Input the DTC: P11EA00, P11EB00, P11EC00, P11ED00, P11EE00, P11EF00, P11F000, P11F100, P219A00, P219B00, P219C00, P219D00, P219E00, P219F00, P21A000 or P21A100.

Check the DTC judgment result.

Techstream Display	Description
NORMAL	DTC judgment completed System normal
ABNORMAL	DTC judgment completed System abnormal
INCOMPLETE	DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions

HINT:

If the judgment result is NORMAL, the system is normal.
If the judgment result is ABNORMAL, the system has a malfunction.
If the judgment result is INCOMPLETE, perform the confirmation driving pattern and check the judgment result again.
[A] to [K]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

CAUTION / NOTICE / HINT

HINT:

Bank 1 refers to the bank that includes the No. 1 cylinder*.
*: The No. 1 cylinder is the cylinder which is farthest from the transaxle.
Bank 2 refers to the bank that does not include the No. 1 cylinder.
Sensor 1 refers to the sensor closest to the engine assembly.
Sensor 2 refers to the sensor farthest away from the engine assembly.
When any air-fuel ratio imbalance is detected, the ECM will perform air-fuel ratio feedback control to make the air-fuel ratio close to the stoichiometric level. This may result in an air-fuel ratio imbalance of normal cylinders and DTCs may be stored.
Whether malfunctions occur on the port injection side or direct injection side cannot be determined solely by the output DTCs. Inspect every suspected area even if it is not related to the DTCs.
Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE

1.	CHECK ANY OTHER DTCS OUTPUT

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Enter the following menus: Powertrain / Engine / Trouble Codes.

(e) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result	Proceed to
DTC P11EA00, P11EB00, P11EC00, P11ED00, P11EE00, P11EF00, P11F000, P11F100, P219A00, P219B00, P219C00, P219D00, P219E00, P219F00, P21A000 and/or P21A100 are output	A
DTC P11EA00, P11EB00, P11EC00, P11ED00, P11EE00, P11EF00, P11F000, P11F100, P219A00, P219B00, P219C00, P219D00, P219E00, P219F00, P21A000 and/or P21A100 and other DTCs are output	B

HINT:

If any DTCs other than DTC P11EA00, P11EB00, P11EC00, P11ED00, P11EE00, P11EF00, P11F000, P11F100, P219A00, P219B00, P219C00, P219D00, P219E00, P219F00, P21A000 and/or P21A100 are output, troubleshoot those DTCs first.

GO TO DTC CHART

2.	READ VALUE USING TECHSTREAM (FREEZE FRAME DATA)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored.

Click here

Freeze Frame Data Items for DTC P11EA00, P11EB00, P11EC00, P11ED00, P11EE00, P11EF00, P11F000, P11F100, P219A00, P219B00, P219C00, P219D00, P219E00, P219F00, P21A000 or P21A100

Vehicle Speed
Engine Speed
Calculate Load
Accelerator Position
Short FT B1S1 or B2S1
Long FT B1S1 or B2S1
Misfire Count Cylinder #1 to #6

HINT:

When the sum of Short FT and Long FT is positive, the engine is running lean, and when the sum is negative, the engine is running rich.

Air Fuel Ratio Sensor Monitoring Method (P11EA00, P11EB00, P219A00 and P219B00)	Crankshaft Position Sensor Monitoring Method (P11EC00, P11ED00, P11EE00, P11EF00, P11F000, P11F100, P219C00, P219D00, P219E00, P219F00, P21A000 and P21A100)	Note
DTCs are output	DTC is output (Only one DTC relating to a single cylinder is output)	Malfunctioning of cylinders detected by the Crankshaft Position Sensor Monitoring Method is primarily suspected
DTCs are output	DTCs are output (Multiple DTCs relating to multiple cylinders are output)	Malfunctioning of cylinders except ones detected by the Crankshaft Position Sensor Monitoring Method is primarily suspected.*
DTCs are not output	DTCs are output	Malfunctioning of cylinders detected by the Crankshaft Position Sensor Monitoring Method is primarily suspected.
DTCs are output	DTCs are not output	Malfunctioning of the bank detected by the Air Fuel Ratio Sensor Monitoring Method is primarily suspected.

*: When any air-fuel ratio imbalance is detected, the ECM will perform air-fuel ratio feedback control to make the air-fuel ratio close to the stoichiometric level. This may result in an air-fuel ratio imbalance of normal cylinders and DTCs may be stored.

3.	READ DTC OUTPUT

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

HINT:

If any misfire count (Misfire Count Cylinder #1 to #6) increases while idling or driving the vehicle, proceed to step 6 (CHECK INTAKE SYSTEM).
Perform inspections while focusing on the cylinder whose misfire count has increased.

(e) Enter the following menus: Powertrain / Engine / Trouble Codes.

(f) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result	Proceed to
P11EA00, P11EB00, P219A00 or P219B00 is output	A
DTC P219A00 or P219B00, and P219C00, P219D00, P219E00, P219F00, P21A000 or P21A100 are output	B
DTC P11EA00 or P11EB00, and P11EC00, P11ED00, P11EE00, P11EF00, P11F000 or P11F100 are output
DTC P11EC00, P11ED00, P11EE00, P11EF00, P11F000, P11F100, P219C00, P219D00, P219E00, P219F00, P21A00 and/or P21A100 are output

GO TO STEP 6

4.	PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE INJECTION VOLUME)

(a) Connect the Techstream to the DLC3.

(b) Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher.

HINT:

The A/C switch and all accessory switches should be off and the shift lever should be in P.

(d) Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume / Data List / Coolant Temperature and Misfire Count Cylinder #1 to #6.

Powertrain > Engine > Active Test

Active Test Display
Control the Injection Volume

Data List Display
Coolant Temperature
Misfire Count Cylinder #1
Misfire Count Cylinder #2
Misfire Count Cylinder #3
Misfire Count Cylinder #4
Misfire Count Cylinder #5
Misfire Count Cylinder #6

HINT:

When the "Control the Injection Volume" Active Test is selected (injection volume is 0%), if a misfire count increases, proceed to step 6 (CHECK INTAKE SYSTEM).

(e) Perform the Control the Injection Volume operation with the engine idling.

(f) Check the misfire counts (Misfire Count Cylinder #1 to #6) while decreasing the injection volume in 5% increments.

The cylinder whose misfire count has not increased can be assumed to be running rich. Therefore, perform inspections while focusing on that cylinder.

5.	CHECK FOR EXHAUST GAS LEAK

(a) Check for exhaust gas leak.

OK:

No gas leaks in exhaust system.

HINT:

Perform "Inspection After Repair" after repairing or replacing the exhaust system.

Click here

REPAIR OR REPLACE EXHAUST SYSTEM

6.	CHECK INTAKE SYSTEM

(a) Check the intake system for vacuum leaks.

Click here

OK:

No leaks in the intake system.

HINT:

Perform "Inspection After Repair" after repairing or replacing the intake system.

Click here

REPAIR OR REPLACE INTAKE SYSTEM

7.	INSPECT SPARK PLUG

(a) Inspect the spark plug of the cylinder causing the imbalance.

Click here

HINT:

Perform "Inspection After Repair" after replacing the spark plug.

Click here

REPLACE SPARK PLUG

8.	CHECK FOR SPARK (SPARK TEST)

(a) Perform a spark test.

Click here

HINT:

If the result of the spark test is normal, proceed to the next step.
Perform "Inspection After Repair" after replacing the spark plug or ignition coil assembly.
Click here

9.	CHECK CYLINDER COMPRESSION PRESSURE

(a) Measure the cylinder compression pressure of the misfiring cylinder.

Click here

HINT:

Perform "Inspection After Repair" after repairing or replacing the engine assembly.

Click here

CHECK ENGINE TO DETERMINE CAUSE OF LOW COMPRESSION

10.	CHECK FUEL INJECTOR ASSEMBLY (FOR PORT INJECTION) OF CYLINDER CAUSING IMBALANCE

(a) Check the fuel injector assembly injection (for port injection) [whether fuel volume is high or low, and whether injection pattern is poor].

Click here

HINT:

Perform "Inspection After Repair" after replacing the fuel injector assembly (for port injection).

Click here

REPLACE FUEL INJECTOR ASSEMBLY (FOR PORT INJECTION)

11.	CHECK FUEL INJECTOR ASSEMBLY (FOR DIRECT INJECTION) OF CYLINDER CAUSING IMBALANCE

(a) Check the fuel injector assembly injection (for direct injection) [whether fuel volume is high or low, and whether injection pattern is poor].

Click here

HINT:

Perform "Inspection After Repair" after replacing the fuel injector assembly (for direct injection).

Click here

REPLACE FUEL INJECTOR ASSEMBLY (FOR DIRECT INJECTION)

12.	CHECK FOR CAUSE OF FAILURE

(a) If the cause of the problem has not been found even after performing the troubleshooting procedure, perform the inspection below.

(b) Check the intake valve for deposits.

HINT:

As the DTC may have been stored due to deposits on the intake valve, remove the cylinder head sub-assembly and check the intake valve.

13.

CLEAR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Clear the DTC.

Powertrain > Engine > Clear DTCs

(e) Turn the engine switch off and wait for at least 30 seconds.

14.	CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

(a) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

(b) Enter the following menus: Powertrain / Engine / Trouble Codes.

Powertrain > Engine > Trouble Codes

DTCs are not output.

END

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O2 Sensor Slow Response - Rich to Lean Bank 1 Sensor 1 (P014C00-P014F00,P015A00-P015D00)

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