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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE> 13B-231 STEP 5. Check connector A-21X at MFI relay for damage. YES : Repair harness wire between MFI relay connector and injector connector because of open circuit or a. Repair harness wire between MFI relay connector A-21X terminal 1 and injector b. Repair harness wire between MFI relay connector A-21X terminal 1 and injector c. Repair harness wire between MFI relay connector A-21X terminal 1 and injector Then go to Step 10. NO : Repair or replace it. Refer to GROUP 00E, Harness Connector Inspection ( ). Then go to Step 10. STEP 6. Check for harness damage between MFI relay a. Check the harness wire between MFI relay connector A- 21X terminal 1 and injector connector B-02 terminal 1 when b. Check the harness wire between MFI relay connector A- 21X terminal 1 and injector connector B-06 terminal 1 when c. Check the harness wire between MFI relay connector A- 21X terminal 1 and injector connector B-25 terminal 1 when Q: Is the harness wire in good condition? YES : Go to Step 7. AK000226 AK000226AB CONNECTOR : A-21X MFI RELAY AK000226 AK000226AB CONNECTOR : A-21X MFI RELAY AK000213AB CONNECTORS : B-02, B-06, B-25 B-02 B-06 B-25 |