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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE> 13B-375 STEP 12. Check for harness damage between MFI relay YES : Go to Step 13. STEP 13. Check for harness damage between idle air a. Idle air control motor connector B-34 terminal 1 and ECM connector C-51 terminal 14 <M/T> or PCM connector C-52 b. Idle air control motor connector B-34 terminal 3 and ECM connector C-51 terminal 28 <M/T> or PCM connector C-52 c. Idle air control motor connector B-34 terminal 4 and ECM connector C-51 terminal 15 <M/T> or PCM connector C-52 d. Idle air control motor connector B-34 terminal 6 and ECM connector C-51 terminal 29 <M/T> or PCM connector C-52 Q: Is the harness wire in good condition? YES : Replace the ECM or PCM. Then go to Step 14. AK000226 AK000226AB CONNECTOR : A-21X MFI RELAY ACX02523AI IDLE AIR CONNECTOR:B-34 ACX02523AI IDLE AIR CONNECTOR:B-34 AK000225 CONNECTOR : C-51<M/T>, C-52<A/T> C-52 C-51 PCM<A/T> ECM<M/T> AJ |