SFI SYSTEM(w/ Canister Pump Module), Diagnostic DTC:P11EA00, P11EC00, P11ED00, P11EE00, P11EF00, P219A00, P219C00, P219D00, P219E00, P219F00

DTC Code	DTC Name
P11EA00	Bank 1 Air-Fuel Ratio Imbalance (Port)
P11EC00	Cylinder #1 Air-Fuel Ratio Imbalance (Port)
P11ED00	Cylinder #2 Air-Fuel Ratio Imbalance (Port)
P11EE00	Cylinder #3 Air-Fuel Ratio Imbalance (Port)
P11EF00	Cylinder #4 Air-Fuel Ratio Imbalance (Port)
P219A00	Bank 1 Air-Fuel Ratio Imbalance
P219C00	Cylinder 1 Air-Fuel Ratio Imbalance
P219D00	Cylinder 2 Air-Fuel Ratio Imbalance
P219E00	Cylinder 3 Air-Fuel Ratio Imbalance
P219F00	Cylinder 4 Air-Fuel Ratio Imbalance

DESCRIPTION

Refer to DTC P030000.

Click here

Refer to DTC P21951D.

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 (sensor 1) ECM	Comes on	DTC stored	SAE: P11EA
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 (sensor 1) ECM	Comes on	DTC stored	SAE: 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 (sensor 1) ECM	Comes on	DTC stored	SAE: 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 (sensor 1) ECM	Comes on	DTC stored	SAE: 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 (sensor 1) ECM	Comes on	DTC stored	SAE: P11EF
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 (sensor 1) ECM	Comes on	DTC stored	SAE: P219A
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 (sensor 1) ECM	Comes on	DTC stored	SAE: 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 (sensor 1) ECM	Comes on	DTC stored	SAE: 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 (sensor 1) ECM	Comes on	DTC stored	SAE: 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 (sensor 1) ECM	Comes on	DTC stored	SAE: P219F

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 a problem is present and stores a DTC.

Air Fuel Ratio Sensor Monitoring Method: P219A00 (for direct injection), or P11EA00 (for port injection) is 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: P219C00, P219D00, P219E00 and/or P219F00 (for direct injection), or P11EC00, P11ED00, P11EE00 and/or P11EF00 (for port 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

P219A and P11EA: Air Fuel Ratio Sensor Monitoring Method
Air fuel ratio sensor status	Activated
Engine speed	1400 rpm to 2400 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
Air fuel ratio sensor status	Activated
Engine load	50% to 70%

P219C, P219D, P219E, P219F, P11EC, P11ED, P11EE and P11EF: Crankshaft Position Sensor Monitoring Method
Vehicle speed	Less than 3 km/h (1.875 mph)
Engine speed	480 rpm to 1250 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: Air Fuel Ratio Sensor Monitoring Method
Air fuel ratio sensor monitoring method criteria (rich side imbalance for direct injection)	1 or more

P11EA: Air Fuel Ratio Sensor Monitoring Method
Air fuel ratio sensor monitoring method criteria (rich side imbalance for port injection)	1 or more

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

P11EC, P11ED, P11EE and P11EF: 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 lever should be in P or N.
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 lever should be in P or N.
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 lever should be in P or N.
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: P219A00, P219C00, P219D00, P219E00, P219F00, P11EA00, P11EC00, P11ED00, P11EE00 or P11EF00

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 judgment result again.

CAUTION / NOTICE / HINT

Tech Tips

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.
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.

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.

Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Result	Proceed to
DTC P219A00, P219C00, P219D00, P219E00, P219F00, P11EA00, P11EC00, P11ED00, P11EE00 and/or P11EF00 is output	A
DTC P219A00, P219C00, P219D00, P219E00, P219F00, P11EA00, P11EC00, P11ED00, P11EE00 and/or P11EF00 and other DTCs are output	B

Tech Tips

If any DTCs other than DTC P219A00, P219C00, P219D00, P219E00, P219F00, P11EA00, P11EC00, P11ED00, P11EE00 and/or P11EF00 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) and 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 P219A00, P219C00, P219D00, P219E00, P219F00, P11EA00, P11EC00, P11ED00, P11EE00 or P11EF00

Vehicle Speed
Engine Speed
Calculate Load
Accelerator Position
Short FT Bank 1
Long FT Bank 1
Misfire Count Cylinder #1 to #4

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 and P11EA)	Crankshaft Position Sensor Monitoring Method (P219C, P219D, P219E, P219F, P11EC, P11ED, P11EE and P11EF)	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 ("Misfire Count Cylinder #1 to #4") 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.

Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Result	Proceed to
P219A or P11EA is output	A
DTC P219A and P219C, P219D, P219E or P219F is output	B
DTC P11EA and P11EC, P11ED, P11EE or P11EF is output
DTC P219C, P219D, P219E, P219F, P11EC, P11ED, P11EE and/or P11EF 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 lever should be in P or N.

Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume / Data List / Misfire Count Cylinder #1 to #4.

Powertrain > Engine > Active Test

Active Test Display
Control the Injection Volume

Data List Display
Misfire Count Cylinder #1
Misfire Count Cylinder #2
Misfire Count Cylinder #3
Misfire Count Cylinder #4

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 ("Misfire Count Cylinder #1 to #4") 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

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

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

Click here

Tech Tips

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

Click here

Result

Proceed to
OK
NG

REPLACE FUEL INJECTOR ASSEMBLY (FOR PORT INJECTION) Click here

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

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

Click here

Tech Tips

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

Click here

Result

Proceed to
OK
NG

REPLACE FUEL INJECTOR ASSEMBLY (FOR DIRECT INJECTION) 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

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

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.
Turn the engine switch on (IG).
Turn the GTS on.
Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
Enter the following menus: Powertrain / Engine / Trouble Codes.

Check for DTCs.

Powertrain > Engine > Trouble Codes

Result
DTC is not output.

Result

Proceed to
NEXT

END