EFI SYSTEM — Troubleshooting for EFI Electronic Circuit with Volt/Ohmmeter No. | Terminals | Trouble | Condition | STD Voltage 7 | IGt - E₁ | No voltage | Cranking or idling | 0.7 - 1.0V Fusible Link Fusible Link Fuse IG/SW Fusible Link Battery Igniter w/ Ignition Coil Tachometer ECU IGt IG₁ IG S/W E₁ F.02/60 ① There is no voltage between ECU terminal IGt and E₁. (Idling) Voltmeter ECU IGt E₁ V F.02/61 ② Check that there is voltage between ECU terminal IG S/W and body ground. (Idling) Voltmeter ECU IG S/W V F.02/46 OK Check wiring between ECU terminal E₁ and body ground. BAD → Repair or replace Refer to No. 1. OK BAD → Repair or replace Check fuse and wiring harness. OK Check wiring between ECU and distributor. BAD → Repair or replace OK Check distributor. BAD → Replace OK Check wiring between ECU and igniter. BAD → Repair or replace OK Check igniter. BAD → Repair or replace OK Try another ECU.