SFI SYSTEM, Diagnostic DTC:P11EA, P11EB, P11EC, P11ED, P11EE, P11EF, P11F0, P11F1, P219A, P219B, P219C, P219D, P219E, P219F, P21A0, P21A1

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)
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

DESCRIPTION

Refer to DTC P0300 Click here.

Refer to DTC P2195, P2197 Click here.

DTC No. DTC Detection Condition Trouble Area

P11EA

P11EC

P11EE

P11F0

P219A

P219C

P219E

P21A0

 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)

  • Air induction system

  • Gas leak from exhaust system

  • Ignition system

  • Compression pressure

  • Air fuel ratio sensor (bank 1 sensor 1)

  • ECM

P11EB

P11ED

P11EF

P11F1

P219B

P219D

P219F

P21A1

 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)

  • Air induction system

  • Gas leak from exhaust system

  • Ignition system

  • Compression pressure

  • Air fuel ratio sensor (bank 2 sensor 1)

  • ECM

MONITOR DESCRIPTION




MONITOR STRATEGY

Required Sensors/Components (Main)

Air fuel ratio sensor

Crankshaft position sensor
Required Sensors/Components (Related)

Mass air flow meter assembly

Engine coolant temperature sensor

Vehicle speed sensor
Frequency of Operation Once per driving cycle

TYPICAL ENABLING CONDITIONS

P219A, P219B, P11EA and P11EB: Air Fuel Ratio Sensor Monitoring Method
Air fuel ratio sensor status Activated
Engine speed 1500 to 2400 rpm
Engine coolant temperature 75°C (167°F) or higher
Atmospheric pressure 76 kPa (570 mmHg) or higher
Fuel system status Closed loop
Air fuel ratio sensor status Activated
P219C, P219D, P219E, P219F, P21A0, P21A1, P11EC, P11ED, P11EE, P11EF, P11F0 and P11F1: Crankshaft Position Sensor Monitoring Method (First Judgment)
Engine speed 1400 rpm or higher, and less than 1700 rpm
Engine Load 40% or more, and less than 50%
Engine coolant temperature 75°C (167°F) or higher
Air fuel ratio sensor status Activated
Fuel system status Closed loop
Auxiliary battery voltage 11 V or higher
Crankshaft Position Sensor Monitoring Method (Second Judgment)
Vehicle speed Less than 3 km/h (1.865 mph)
Engine speed 1050 rpm or higher, and less than 1350 rpm
Engine coolant temperature 75°C (167°F) or higher
Air fuel ratio sensor status Activated
Fuel system status Closed loop
Auxiliary 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 (bank 1)

0.25 or more (bank 2)
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 (bank 1)

0.25 or more (bank 2)
P219C, P219D, P219E, P219F, P21A0 and P21A1: Crankshaft Position Sensor Monitoring Method
Crankshaft position sensor monitoring method criteria (lean side imbalance for direct injection) 1.5 or more
P11EC, P11ED, P11EE, P11EF, P11F0 and P11F1: Crankshaft Position Sensor Monitoring Method
Crankshaft position sensor monitoring method criteria (First Judgment) 1.5 or more
Crankshaft position sensor monitoring method criteria (Second Judgment) 1 or more

CONFIRMATION DRIVING PATTERN

B002BECE06

  1. Connect the GTS to the DLC3.

  2. Turn the power switch on (IG) and turn the GTS on.

  3. Put the engine in inspection mode (maintenance mode) Click here.

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

  5. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

    CAUTION:

    Use the GTS to clear the DTCs. (Do not disconnect the cable from negative (-) auxiliary battery terminal to clear the DTCs.)

  6. Drive the vehicle at 40 km/h (25 mph).

  7. With the engine running, gradually accelerate the vehicle from 40 km/h (25 mph) to 80 km/h (50 mph) taking approximately 10 to 20 seconds [B].

    Tech Tips


    • Refer to mass air flow and engine speed in Typical Enabling Conditions, and then accelerate the vehicle to 80 km/h (50 mph).

    • If the engine stops, further depress the accelerator pedal to restart the engine.

  8. With the engine running, drive the vehicle at 80 km/h (50 mph) or more for 1 minute or more [C].

    CAUTION:

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

    Tech Tips


    • Electrical load can be applied while the vehicle is driven.

    • If the engine stops, further depress the accelerator pedal to restart the engine.

  9. Idle the engine for 1 minute or more [D].

    Tech Tips

    With the shift lever in D.

  10. Repeat steps [B] and [D] above at least 3 times [E].

  11. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [F].

  12. 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.

  13. With the engine running, drive the vehicle at 80 km/h (50 mph).

    Tech Tips

    If the engine stops, further depress the accelerator pedal to restart the engine.

  14. With the engine running, gradually accelerate the vehicle from 80 km/h (50 mph) to 100 km/h (62 mph) taking approximately 5 to 15 seconds [G].

    Tech Tips


    • Refer to mass air flow and engine speed in Typical Enabling Conditions, and then accelerate the vehicle to 100 km/h (62 mph).

    • If the engine stops, further depress the accelerator pedal to restart the engine.

  15. With the engine running, drive the vehicle at 100 km/h (62 mph) or more for 1 minute or more [H].

    CAUTION:

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

    Tech Tips


    • Electrical load can be applied while the vehicle is driven.

    • If the engine stops, further depress the accelerator pedal to restart the engine.

  16. Idle the engine for 1 minute or more [I].

    Tech Tips

    With the shift lever in D.

  17. Repeat steps [G] and [I] above at least 2 times [J].

  18. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [K].

  19. 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.

  20. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.

  21. Input the DTC: P219A, P219B, P219C, P219D, P219E, P219F, P21A0, P21A1, P11EA, P11EB, P11EC, P11ED, P11EE, P11EF, P11F0 or P11F1

  22. 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 or N/A, 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.

  • 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.

PROCEDURE


  1. CHECK FOR ANY OTHER DTCS OUTPUT


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

    5. Read the DTCs.

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

      Tech Tips

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


    B

    GO TO DTC CHART Click here

    A

  2. READ VALUE USING GTS (FREEZE FRAME DATA)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG) and turn the GTS on.

    3. 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, P11EA, P11EB, P11EC, P11ED, P11EE, P11EF, P11F0 or P11F1

      • Vehicle Speed

      • Engine Speed

      • Calculate Load

      • Accelerator Idle Position

      • Short FT #1 or #2

      • Long FT #1 or #2

      • Cylinder #1 Misfire Count to Cylinder #6 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, P11EC, P11ED, P11EE, P11EF, P11F0 and P11F1) Note
      DTCs are output DTC is output (Only one DTC relating to a single cylinder is output) Malfunction 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) Malfunction of cylinders except ones detected by the Crankshaft Position Sensor Monitoring Method is primarily suspected.*1
      DTCs are not output DTCs are output Malfunction 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.


    NEXT

  3. READ DTC OUTPUT


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. 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 #6 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.

    5. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

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

    B

    CHECK AIR INDUCTION SYSTEM Click here

    A

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


    1. Connect the GTS to the DLC3.

    2. Start the engine.

    3. Turn the GTS on.

    4. 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.

    5. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume / Data List / Cylinder #1 to #6 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 Air Induction System).

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

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

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

    NEXT

  5. CHECK FOR EXHAUST GAS LEAK


    1. Check for exhaust gas leaks.

      OK
      No gas leaks.

      Tech Tips

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


    NG

    REPAIR OR REPLACE EXHAUST SYSTEM

    OK

  6. CHECK AIR INDUCTION SYSTEM


    1. Check the air induction system for vacuum leakage Click here.

      OK
      No leakage in air induction system.

      Tech Tips

      Perform "Inspection After Repair" after repairing or replacing the air induction system Click here.


    NG

    REPAIR OR REPLACE AIR INDUCTION SYSTEM

    OK

  7. INSPECT SPARK PLUG


    1. 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.


    NG

    REPLACE SPARK PLUG Click here

    OK

  8. CHECK FOR SPARKS AND IGNITION


    1. 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.


    NEXT

  9. CHECK CYLINDER COMPRESSION PRESSURE


    1. 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.


    NG

    CHECK ENGINE TO DETERMINE CAUSE OF LOW COMPRESSION

    OK

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


    1. Check the fuel injector 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.


    NG

    REPLACE FUEL INJECTOR ASSEMBLY (FOR PORT INJECTION) Click here

    OK

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


    1. Check the fuel injector 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.


    NG

    REPLACE FUEL INJECTOR ASSEMBLY (FOR DIRECT INJECTION) Click here

    OK

  12. CHECK FOR CAUSE OF FAILURE


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

    2. 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.


    NEXT

  13. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs Click here.

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

    6. Turn the engine switch on (IG).

    7. Turn the GTS on.

    8. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

    9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

    10. Check for DTCs.

      Result
      DTC is not output.

    NEXT

    END