|
|
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L> 13A-337 STEP 12. Check for entry of foreign matter (water, YES : Go to Step 13. STEP 13. Replace the injector. Diagnostic Function − OBD-II Drive Cycle − Procedure 2 − Fuel Trim Monitor (3) Check the diagnostic trouble code (DTC). YES : Replace the ECM or PCM. Then go to Step 14. STEP 14. Test the OBD-II drive cycle. Diagnostic Function − OBD-II Drive Cycle − Procedure 2 − Fuel Trim Monitor (2) Check the diagnostic trouble code (DTC). YES : Retry the troubleshooting. DTC P0172: System too Rich . System too Rich Circuit • Refer to, DTC P0201 − P0204 Injector Circuit Malfunction . CIRCUIT OPERATION • Refer to, DTC P0201 − P0204 Injector Circuit Malfunction . TECHNICAL DESCRIPTION • If a malfunction occurs in the fuel system, the fuel trim value becomes too small. • The ECM <M/T> or PCM <A/T> checks whether the fuel trim value is within a specified range. . DESCRIPTIONS OF MONITOR METHODS air/fuel feedback integral value (short term fuel . MONITOR EXECUTION . MONITOR EXECUTION CONDITIONS (Other Other Monitor (There is no temporary DTC stored in memory for the item monitored below) • Misfire monitor Sensor (The sensor below is determined to be normal) • Volume airflow sensor • Engine coolant temperature sensor • Intake air temperature sensor • Barometric pressure sensor • Throttle position sensor . AK300737 1 2 CONNECTORS: B-01, B-02, B-05, B-06 AB B-02 (GR) B-01 (GR) B-05 (GR) B-06 (GR) HARNESS CONNECTOR: |