|
|
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) 13A-173 STEP 5. Check the engine coolant temperature sensor. . Q: Is the engine coolant temperature sensor normal? YES : Replace the ECM. When the ECM is replaced, register the ID code. Refer to GROUP 42B, ID Code or GROUP 42C, ID Codes Registration Judgment Table <Vehicles with WCM> . Then go to Step 6. NO : Replace the engine coolant temperature sensor. Then go to Step 6. STEP 6. Test the OBD-II drive cycle. Diagnostic Function − OBD-II Drive Cycle − Pattern 23 (2) Check the diagnostic trouble code (DTC). YES : Retry the troubleshooting. |