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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) 13A-321 STEP 3. Measure the power supply voltage at left bank side. (2) Turn the ignition switch to the "ON" position. (3) Measure the voltage between terminal No. 1 and ground. • Voltage should be battery positive voltage. (4) Turn the ignition switch to the "LOCK" (OFF) position. present? STEP 4. Check connector C-59 at the MFI relay for damage. YES : Check connector C-14 at intermediate connector for damage, and repair or replace as required. Refer to . If intermediate connector is in good condition, repair harness wire between MFI relay NO : Repair or replace it. Refer to GROUP 00E, Harness Connector Inspection . Then go to Step 12. AK200496 1 2 3 4 A-09(GR) AB CONNECTOR: A-09 HARNESS LEFT BANK AKX01496 2 1 4 3 A-09 HARNESS AP AK200023 2 1 3 4 CONNECTOR: C-59 AB C-59 HARNESS |