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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L> 13B-475 STEP 6. Check the fuel pressure. . Q: Is the fuel pressure normal? YES : Go to Step 7. STEP 7. Replace the left bank 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 8. STEP 8. 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. AK300753 1 2 CONNECTORS: B-02, B-06, B-25 AB B-02 (GR) B-06 (GR) B-25 (GR) HARNESS CONNECTOR: |