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MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L> 13A-29 STEP 4. Check connector B-14 at the volume air flow YES : Repair harness wire between MFI relay connector A- 21X terminal 1 and volume air flow sensor connector NO : Repair or replace it. Refer to GROUP 00E, Harness Connector Inspection( ). Then go to Step 13. STEP 5. Check connector B-14 at volume air flow sensor YES : Go to Step 6. Connector Inspection( ). Then go to Step 13. STEP 6. Check the sensor supply voltage at volume air side. (2) Turn the ignition switch to the "ON" position. • Voltage should be between 4.8 and 5.2 volts. (4) Turn the ignition switch to the "LOCK"(OFF) position. Q: Is the voltage normal? YES : Go to Step 9. STEP 7. Check connector C-40 at PCM for damage. YES : Go to Step 8. Connector Inspection( ). Then go to Step 13. ACX02480 CONNECTOR : B-14 AC VOLUME AIR ACX02480 CONNECTOR : B-14 AC VOLUME AIR AKX01406 AC B-14 HARNESS 7 6 5 4 3 2 1 AK000280 CONNECTOR : C-40 PCM AV |