Check for continuity between PGM-FI main relay 1 4P connector terminal No. 2 and body ground. Is there continuity?
YES | - | Repair short in the wire between PGM-FI main relay 1, fuel rail pressure control valve and ECM connector No. 2 terminal No. 1, No. 3 or No. 5. Also replace No. 8 FI ECU (ECM) (20 A) fuse.■
NO | - | Update the ECM if it does not have the latest software, or substitute a known-good ECM, then recheck. If the symptom/indication goes away with a known-good ECM, replace the original ECM. ■
Turn the ignition switch OFF. Disconnect PGM-FI main relay 1. |