FL36 EFI SYSTEM — Troubleshooting for EFI Electronic Circuit with Volt/Ohmmeter • VTA ↔ E2 ① There is no specified voltage at ECU terminals VTA and E2. (IG S/W ON) ② Check that there is voltage between ECU terminal +B and body ground. (IG S/W ON) NO OK Check wiring between ECU terminal E1 and body ground. BAD Repair or replace Refer to No. 1. BAD Repair or replace OK ③ Check throttle position sensor. BAD Repair or replace OK Check wiring between ECU and BAD Repair or replace throttle position sensor. OK Try another ECU. • VC ↔ E2 ① There is no voltage between ECU terminals VC and E2. (IG S/W ON) Check that there is voltage between ECU terminal +B and body ground. (IG S/W ON) OK NO ② Check throttle position Refer to No. 1. sensor. BAD OK Repair or replace Check wiring between ECU and throttle position sensor. OK BAD Try another ECU. Repair or replace wiring.