SFI SYSTEM(w/ Canister Pump Module), Diagnostic DTC:P219A, P219C, P219D, P219E, P219F

DTC Code DTC Name
P219A Bank 1 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

DESCRIPTION

Refer to DTC P0300.

Click here

Refer to DTC P2195.

Click here

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P219A 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

  • Intake system

  • Gas leaks from exhaust system

  • Ignition system

  • Compression pressure

  • Air fuel ratio sensor (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).

  • Fuel injector assembly

  • Intake system

  • Gas leaks from exhaust system

  • Ignition system

  • Compression pressure

  • Air fuel ratio sensor (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).

  • Fuel injector assembly

  • Intake system

  • Gas leaks from exhaust system

  • Ignition system

  • Compression pressure

  • Air fuel ratio sensor (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).

  • Fuel injector assembly

  • Intake system

  • Gas leaks from exhaust system

  • Ignition system

  • Compression pressure

  • Air fuel ratio sensor (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).

  • Fuel injector assembly

  • Intake system

  • Gas leaks from exhaust system

  • Ignition system

  • Compression pressure

  • Air fuel ratio sensor (sensor 1)

  • ECM

 Comes on DTC stored

MONITOR DESCRIPTION




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
Frequency of Operation Once per driving cycle
Duration 10 to 15 seconds

TYPICAL ENABLING CONDITIONS

P219A: Air Fuel Ratio Sensor Monitoring Method
Engine speed 2200 rpm or more, and less than 2800 rpm
Engine coolant temperature 73°C (163°F) or higher
Atmospheric pressure 76 kPa(abs) [570 mmHg(abs)] or higher
Fuel system status Closed loop
Mass air flow 22 g/sec or more, and less than 44 g/sec
P219C, P219D, P219E and P219F: Crankshaft Position Sensor Monitoring Method (First Judgment)
Engine speed 2000 rpm or more, and less than 2400 rpm
Engine Load 40% or more, and less than 60%
Engine coolant temperature 73°C (163°F) or higher
Fuel system status Closed loop
Auxiliary battery voltage 11 V or higher
P219C, P219D, P219E and P219F: Crankshaft Position Sensor Monitoring Method (Second Judgment)
Vehicle speed Less than 3 km/h (1.875 mph)
Engine speed 1050 rpm or more, and less than 1350 rpm
Engine coolant temperature 73°C (163°F) or higher
Fuel system status Closed loop
Auxiliary battery voltage 11 V or higher

TYPICAL MALFUNCTION THRESHOLDS

P219A: Air Fuel Ratio Sensor Monitoring Method (Bank 1)
Air fuel ratio sensor monitoring method criteria 0.075 or more
Crankshaft Position Sensor Monitoring Method (First Judgment)
Crankshaft position sensor monitoring method criteria (first judgment) 1.5 or more
Crankshaft Position Sensor Monitoring Method (Second Judgment)
Crankshaft position sensor monitoring method criteria (second judgment) 1 or more

Tech Tips

If the first judgment while driving shows that the value of Engine Speed Fluctuation Average is between 0.5 and 1.5, then second judgment will be performed when the vehicle is stopped and the engine is idling.

CONFIRMATION DRIVING PATTERN

B002H7TE03

  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 73°C (163°F) or higher [A].

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

    Note

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

  6. With the engine running, drive the vehicle at 40 km/h (25 mph) or higher.

    CAUTION:

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

    Tech Tips

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

  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 higher 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).

    CAUTION:

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

    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].

    CAUTION:

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

    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 higher 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, P219C, P219D, P219E or P219F.

  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


  • 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.

  • 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


  1. CHECK ANY OTHER DTCS OUTPUT


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

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

    5. Read the DTCs.


      Powertrain > Engine and ECT > Trouble Codes
      Result
      Result Proceed to
      DTC P219A, P219C, P219D, P219E and/or P219F is output A
      DTC P219A, P219C, P219D, P219E and/or P219F and other DTCs are output B

      Tech Tips

      If any DTCs other than DTC P219A, P219C, P219D, P219E and/or P219F 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 power 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, P219C, P219D, P219E or P219F:

      • Vehicle Speed

      • Engine Speed

      • Calculate Load

      • Short FT

      • Long FT

      • Cylinder #1 Misfire Count to Cylinder #4 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) Crankshaft Position Sensor Monitoring Method (P219C, P219D, P219E and P219F) Note
      DTCs are output DTC is output (Only one DTC relating to a single cylinder is output) Malfunctioning of cylinders detected by 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 Crankshaft Position Sensor Monitoring Method is primarily suspected.*
      DTCs are not output DTCs are output Malfunctioning of cylinders detected by Crankshaft Position Sensor Monitoring Method is primarily suspected.
      DTCs are output DTCs are not output Malfunctioning of the bank detected by 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.

      Result
      Proceed to
      NEXT

    NEXT

  3. READ DTC OUTPUT


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Put the engine in inspection mode (maintenance mode).

      Click here


      Powertrain > Hybrid Control > Utility
      Tester Display
      Inspection Mode

    5. Start the engine.

    6. 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 #4 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.

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

    8. Read the DTCs.


      Powertrain > Engine and ECT > Trouble Codes
      Result
      Result Proceed to
      DTC P219A is output A
      DTC P219A and P219C, P219D or P219E are output B
      DTC P219C, P219D, P219E and/or P219F is output

    B

    GO TO STEP 6 Click here

    A

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


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Put the engine in inspection mode (maintenance mode).

      Click here


      Powertrain > Hybrid Control > Utility
      Tester Display
      Inspection Mode

    5. Start the engine and warm it up.

      Tech Tips

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

    6. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume / Ptrl Misfire / Cylinder #1 to #4 Misfire Count.


      Powertrain > Engine and ECT > 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

      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).

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

    8. Check the misfire counts ("Cylinder #1 Misfire Count" to "Cylinder #4 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

    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

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE EXHAUST SYSTEM

    OK

  6. CHECK INTAKE SYSTEM


    1. 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

    NG

    REPAIR OR REPLACE INTAKE 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

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE SPARK PLUG Click here

    OK

  8. CHECK FOR SPARK (SPARK TEST)


    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

      Result
      Proceed to
      NEXT

    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

      Result
      Proceed to
      OK
      NG

    NG

    CHECK ENGINE TO DETERMINE CAUSE OF LOW COMPRESSION

    OK

  10. CHECK TERMINAL VOLTAGE (POWER SOURCE OF FUEL INJECTOR ASSEMBLY)

    A01H70BC47
    *a

    Front view of wire harness connector

    (to Fuel Injector Assembly)
    Result
    Proceed to
    OK
    NG

    1. Disconnect the fuel injector assembly connector.

    2. Turn the power switch on (IG).

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      C36-1 - Body ground Power switch on (IG) 11 to 14 V
      C35-1 - Body ground Power switch on (IG) 11 to 14 V
      G1-1 - Body ground Power switch on (IG) 11 to 14 V
      G2-1 - Body ground Power switch on (IG) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    CHECK FUEL INJECTOR CIRCUIT Click here

    OK

  11. CHECK FUEL INJECTOR ASSEMBLY OF CYLINDER CAUSING IMBALANCE


    1. Check the fuel injector assembly 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.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FUEL INJECTOR ASSEMBLY 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 valves.

    3. Check for deposits in the EGR delivery chamber.

      Tech Tips

      The DTC may have been stored due to deposits that have accumulated in the EGR delivery chamber. Therefore, remove and inspect the EGR delivery chamber.

      Result
      Proceed to
      NEXT

    NEXT

  13. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.

      Click here


      Powertrain > Engine and ECT > Clear DTCs

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

    6. Turn the power 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.


      Powertrain > Engine and ECT > Trouble Codes
      Result
      DTCs are not output.
      Result
      Proceed to
      NEXT

    NEXT

    END