SFI SYSTEM(w/ Canister Pump Module), Diagnostic DTC:P11EA, P11EB, P11EC, P11ED, P11EE, P11EF, P11F0, P11F1, P11F2, P11F3, P219A, P219B, P219C, P219D, P219E, P219F, P21A0, P21A1, P21A2, P21A3

DTC Code	DTC Name
P11EA	Bank 1 Air-Fuel Ratio Imbalance (Port)
P11EB	Bank 2 Air-Fuel Ratio Imbalance (Port)
P11EC	Cylinder 1 Air-Fuel Ratio Imbalance (Port)
P11ED	Cylinder 2 Air-Fuel Ratio Imbalance (Port)
P11EE	Cylinder 3 Air-Fuel Ratio Imbalance (Port)
P11EF	Cylinder 4 Air-Fuel Ratio Imbalance (Port)
P11F0	Cylinder 5 Air-Fuel Ratio Imbalance (Port)
P11F1	Cylinder 6 Air-Fuel Ratio Imbalance (Port)
P11F2	Cylinder 7 Air-Fuel Ratio Imbalance (Port)
P11F3	Cylinder 8 Air-Fuel Ratio Imbalance (Port)
P219A	Bank 1 Air-Fuel Ratio Imbalance
P219B	Bank 2 Air-Fuel Ratio Imbalance
P219C	Cylinder 1 Air-Fuel Ratio Imbalance
P219D	Cylinder 2 Air-Fuel Ratio Imbalance
P219E	Cylinder 3 Air-Fuel Ratio Imbalance
P219F	Cylinder 4 Air-Fuel Ratio Imbalance
P21A0	Cylinder 5 Air-Fuel Ratio Imbalance
P21A1	Cylinder 6 Air-Fuel Ratio Imbalance
P21A2	Cylinder 7 Air-Fuel Ratio Imbalance
P21A3	Cylinder 8 Air-Fuel Ratio Imbalance

DESCRIPTION

Refer to DTC P0300.

Click here

Refer to DTC P2195.

Click here

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory
P11EA	Bank 1 Air-Fuel Ratio Imbalance (Port)	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Port fuel injector assembly Direct fuel injector assembly Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 1 sensor 1) ECM	Comes on	DTC stored
P11EB	Bank 2 Air-Fuel Ratio Imbalance (Port)	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Port fuel injector assembly Direct fuel injector assembly Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 2 sensor 1) ECM	Comes on	DTC stored
P11EC	Cylinder 1 Air-Fuel Ratio Imbalance (Port)	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Port fuel injector assembly Direct fuel injector assembly Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 1 sensor 1) ECM	Comes on	DTC stored
P11ED	Cylinder 2 Air-Fuel Ratio Imbalance (Port)	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Port fuel injector assembly Direct fuel injector assembly Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 2 sensor 1) ECM	Comes on	DTC stored
P11EE	Cylinder 3 Air-Fuel Ratio Imbalance (Port)	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Port fuel injector assembly Direct fuel injector assembly Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 1 sensor 1) ECM	Comes on	DTC stored
P11EF	Cylinder 4 Air-Fuel Ratio Imbalance (Port)	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Port fuel injector assembly Direct fuel injector assembly Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 2 sensor 1) ECM	Comes on	DTC stored
P11F0	Cylinder 5 Air-Fuel Ratio Imbalance (Port)	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Port fuel injector assembly Direct fuel injector assembly Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 1 sensor 1) ECM	Comes on	DTC stored
P11F1	Cylinder 6 Air-Fuel Ratio Imbalance (Port)	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Port fuel injector assembly Direct fuel injector assembly Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 2 sensor 1) ECM	Comes on	DTC stored
P11F2	Cylinder 7 Air-Fuel Ratio Imbalance (Port)	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Port fuel injector assembly Direct fuel injector assembly Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 1 sensor 1) ECM	Comes on	DTC stored
P11F3	Cylinder 8 Air-Fuel Ratio Imbalance (Port)	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Port fuel injector assembly Direct fuel injector assembly Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 2 sensor 1) ECM	Comes on	DTC stored
P219A	Bank 1 Air-Fuel Ratio Imbalance	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Port fuel injector assembly Direct fuel injector assembly Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 1 sensor 1) ECM	Comes on	DTC stored
P219B	Bank 2 Air-Fuel Ratio Imbalance	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Port fuel injector assembly Direct fuel injector assembly Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 2 sensor 1) ECM	Comes on	DTC stored
P219C	Cylinder 1 Air-Fuel Ratio Imbalance	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Port fuel injector assembly Direct fuel injector assembly Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 1 sensor 1) ECM	Comes on	DTC stored
P219D	Cylinder 2 Air-Fuel Ratio Imbalance	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Port fuel injector assembly Direct fuel injector assembly Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 2 sensor 1) ECM	Comes on	DTC stored
P219E	Cylinder 3 Air-Fuel Ratio Imbalance	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Port fuel injector assembly Direct fuel injector assembly Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 1 sensor 1) ECM	Comes on	DTC stored
P219F	Cylinder 4 Air-Fuel Ratio Imbalance	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Port fuel injector assembly Direct fuel injector assembly Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 2 sensor 1) ECM	Comes on	DTC stored
P21A0	Cylinder 5 Air-Fuel Ratio Imbalance	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Port fuel injector assembly Direct fuel injector assembly Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 1 sensor 1) ECM	Comes on	DTC stored
P21A1	Cylinder 6 Air-Fuel Ratio Imbalance	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Port fuel injector assembly Direct fuel injector assembly Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 2 sensor 1) ECM	Comes on	DTC stored
P21A2	Cylinder 7 Air-Fuel Ratio Imbalance	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Port fuel injector assembly Direct fuel injector assembly Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 1 sensor 1) ECM	Comes on	DTC stored
P21A3	Cylinder 8 Air-Fuel Ratio Imbalance	The difference in air fuel ratios between the cylinders exceeds the threshold (2 trip detection logic).	Port fuel injector assembly Direct fuel injector assembly Intake system Gas leaks from exhaust system Ignition system Compression pressure Air fuel ratio sensor (bank 2 sensor 1) ECM	Comes on	DTC stored

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: P11EA and/or P11EB (for port injection), or P219A and/or P219B (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: P11EC, P11ED, P11EE, P11EF, P11F0, P11F1, P11F2 and P11F3 (for port injection), or P219C, P219D, P219E, P219F, P21A0, P21A1, P21A2 and P21A3 (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

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

TYPICAL ENABLING CONDITIONS

P11EA, P11EB, P219A and P219B: Air Fuel Ratio Sensor Monitoring Method
Air fuel ratio sensor status	Activated
Engine speed	1200 rpm or higher, and less than 2000 rpm
Engine coolant temperature	75°C (167°F) or higher
Atmospheric pressure	76 kPa(abs) [570 mmHg(abs)] or higher
Fuel system status	Closed loop
Air fuel ratio sensor status	Activated
Mass air flow	40% or more, and less than 60%

P11EC, P11ED, P11EE, P11EF, P11F0, P11F1, P11F2, P11F3, P219C, P219D, P219E, P219F, P21A0, P21A1, P21A2 and P21A3: Crankshaft Position Sensor Monitoring Method
Vehicle speed	Less than 3 km/h (1.875 mph)
Engine speed	400 rpm or higher, and less than 1050 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

P219A and P219B: Air Fuel Ratio Sensor Monitoring Method
Air fuel ratio sensor monitoring method criteria (rich side imbalance for direct injection)	0.25 or more

P11EA and P11EB: Air Fuel Ratio Sensor Monitoring Method
Air fuel ratio sensor monitoring method criteria (rich side imbalance for port injection)	0.25 or more

P219C, P219D, P219E, P219F, P21A0, P21A1, P21A2 and P21A3: Crankshaft Position Sensor Monitoring Method
Crankshaft position sensor monitoring method criteria (lean side imbalance for direct injection)	1 or more

P11EC, P11ED, P11EE, P11EF, P11F0, P11F1, P11F2 and P11F3: Crankshaft Position Sensor Monitoring Method
Crankshaft position sensor monitoring method criteria (lean side imbalance for port injection)	1 or more

CONFIRMATION DRIVING PATTERN

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [A].

Tech Tips

The A/C switch and all accessory switches should be off and the shift state should be park (P).
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
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.

Tech Tips

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

Tech Tips

The A/C switch and all accessory switches should be off and the shift state should be park (P).
Enter the following menus: Powertrain / Engine / Trouble Codes [D].
Read the pending DTCs.
Tech Tips
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
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.

Tech Tips

Refer to the values of mass air flow 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.

Tech Tips

Refer to the values of mass air flow 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].

Tech Tips

The A/C switch and all accessory switches should be off and the shift state should be park (P).
Enter the following menus: Powertrain / Engine / Trouble Codes [K].
Read the pending DTCs.
Tech Tips
- 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: P219A, P219B, P219C, P219D, P219E, P219F, P21A0, P21A1, P21A2, P21A3, P11EA, P11EB, P11EC, P11ED, P11EE, P11EF, P11F0, P11F1, P11F2 and P11F3

Check the DTC judgment result.

GTS 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
N/A	Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

Tech Tips

If the judgment result shows NORMAL, the system is normal.
If the judgment result shows ABNORMAL, the system has a malfunction.
If the judgment result shows INCOMPLETE, perform the Confirmation Driving Pattern and check the DTC judgment result again.
If the judgment result shows N/A, perform the following procedure.

CAUTION / NOTICE / HINT

Tech Tips

Bank 1 refers to the bank that includes the No. 1 cylinder*.

*: The No. 1 cylinder is the cylinder which is farthest from the transmission.
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 GTS. 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

CHECK ANY OTHER DTCS OUTPUT

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Trouble Codes.

Powertrain > Engine > Trouble Codes

Read the DTCs.

Result

Result	Proceed to
DTC P219A, P219B, P219C, P219D, P219E, P219F, P21A0, P21A1, P21A2, P21A3, P11EA, P11EB, P11EC, P11ED, P11EE, P11EF, P11F0, P11F1, P11F2 and/or P11F3 is output	A
DTC P219A, P219B, P219C, P219D, P219E, P219F, P21A0, P21A1, P21A2, P21A3, P11EA, P11EB, P11EC, P11ED, P11EE, P11EF, P11F0, P11F1, P11F2 and/or P11F3 and other DTCs are output	B

Tech Tips

If any DTCs other than DTC P219A, P219B, P219C, P219D, P219E, P219F, P21A0, P21A1, P21A2, P21A3, P11EA, P11EB, P11EC, P11ED, P11EE, P11EF, P11F0, P11F1, P11F2 and/or P11F3 are output, troubleshoot those DTCs first.

GO TO DTC CHART Click here

READ VALUE USING GTS (FREEZE FRAME DATA)

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.

Using the GTS, 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 P219A, P219B, P219C, P219D, P219E, P219F, P21A0, P21A1, P21A2, P21A3, P11EA, P11EB, P11EC, P11ED, P11EE, P11EF, P11F0, P11F1, P11F2 or P11F3

Vehicle Speed
Engine Speed
Calculate Load
Accelerator Idle Position
Short FT B1S1 or B2S1
Long FT B1S1 or B2S1
Cylinder #1 Misfire Count to Cylinder #8 Misfire Count

Tech Tips

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 (P219A, P219B, P11EA and P11EB)	Crankshaft Position Sensor Monitoring Method (P219C, P219D, P219E, P219F, P21A0, P21A1, P21A2, P21A3, P11EC, P11ED, P11EE, P11EF, P11F0, P11F1, P11F2 and P11F3)	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.*1
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.

*1: 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.

Result

Proceed to
NEXT

READ DTC OUTPUT

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
Tech Tips
- If any misfire count ("Cylinder #1 Misfire Count" to "Cylinder #8 Misfire Count) increases while idling or driving the vehicle, proceed to step 6.
- Perform inspections while focusing on the cylinder whose misfire count has increased.
Enter the following menus: Powertrain / Engine / Trouble Codes.

Powertrain > Engine > Trouble Codes

Read the DTCs.

Result

Result	Proceed to
P219A, P219B, P11EA or P11EB is output	A
DTC P219A or P219B, and P219C, P219D, P219E, P219F, P21A0, P21A1, P21A2 or P21A3 is output	B
DTC P11EA or P11EB, and P11EC, P11ED, P11EE, P11EF, P11F0, P11F1, P11F2 or P11F3 is output
DTC P219C, P219D, P219E, P219F, P21A0, P21A1, P21A2, P21A3, P11EC, P11ED, P11EE, P11EF, P11F0, P11F1, P11F2 and/or P11F3 is output

GO TO STEP 6 Click here

PERFORM ACTIVE TEST USING GTS (CONTROL THE INJECTION VOLUME)

Connect the GTS to the DLC3.
Start the engine.
Turn the GTS on.
Warm up the engine.

Tech Tips

The A/C switch and all accessory switches should be off and the shift state should be park (P).

Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume / Ptrl Misfire / Cylinder #1 to #8 Misfire Count.

Powertrain > Engine > Active Test

Active Test Display
Control the Injection Volume

Data List Display
Cylinder #1 Misfire Count
Cylinder #2 Misfire Count
Cylinder #3 Misfire Count
Cylinder #4 Misfire Count
Cylinder #5 Misfire Count
Cylinder #6 Misfire Count
Cylinder #7 Misfire Count
Cylinder #8 Misfire Count

Tech Tips

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).

Perform the Control the Injection Volume operation with the engine idling.

Check the misfire counts ("Cylinder #1 Misfire Count" to "Cylinder #8 Misfire Count") while decreasing the injection volume in 5% increments.

Note

Do not decrease the injection volume by higher than 20%.

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

Result

Proceed to
NEXT

CHECK FOR EXHAUST GAS LEAK

Check for exhaust gas leak.

OK
No gas leaks.

Tech Tips

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

Click here

Result

Proceed to
OK
NG

REPAIR OR REPLACE EXHAUST SYSTEM

CHECK INTAKE SYSTEM

Check the intake system for vacuum leaks.

Click here

OK
No leaks in the intake system.

Tech Tips

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

Click here

Result

Proceed to
OK
NG

REPAIR OR REPLACE INTAKE SYSTEM

INSPECT SPARK PLUG

Inspect the spark plug of the cylinder causing the imbalance.

Click here

Tech Tips

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

Click here

Result

Proceed to
OK
NG

REPLACE SPARK PLUG Click here

CHECK FOR SPARK (SPARK TEST)

Perform a spark test.

Click here

Tech Tips

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

Click here

Result

Proceed to
NEXT

CHECK CYLINDER COMPRESSION PRESSURE

Measure the cylinder compression pressure of the misfiring cylinder.

Click here

Tech Tips

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

Click here

Result

Proceed to
OK
NG

CHECK ENGINE TO DETERMINE CAUSE OF LOW COMPRESSION

CHECK PORT FUEL INJECTOR ASSEMBLY (CYLINDER CAUSING IMBALANCE)

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

Click here

Tech Tips

Perform "Inspection After Repair" after replacing the port fuel injector assembly.

Click here

Result

Proceed to
OK
NG

REPLACE PORT FUEL INJECTOR ASSEMBLY Click here

CHECK DIRECT FUEL INJECTOR ASSEMBLY (CYLINDER CAUSING IMBALANCE)

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

Click here

Tech Tips

Perform "Inspection After Repair" after replacing the direct fuel injector assembly.

Click here

Result

Proceed to
OK
NG

REPLACE DIRECT FUEL INJECTOR ASSEMBLY Click here

CHECK FOR CAUSE OF FAILURE

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

Check the intake valve for deposits.

Tech Tips

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

Result

Proceed to
NEXT

CLEAR DTC

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Clear the DTCs.

Powertrain > Engine > Clear DTCs

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

Result

Proceed to
NEXT

CHECK WHETHER DTC OUTPUT RECURS

Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
Enter the following menus: Powertrain / Engine / Trouble Codes.

Powertrain > Engine > Trouble Codes

Check for DTCs.

Result
DTCs are not output.

Result

Proceed to
NEXT

END