EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE) FI-55 No. | Terminals | Trouble | Condition | STD voltage 2 | IDL - E2 | No voltage | Ignition switch ON | Throttle valve open | 4 - 6 V | VC - E2 | | | - | 4 - 6 V | VTA - E2 | | | Throttle valve fully closed | 0.1 - 1.0 V | | | | Throttle valve fully open | 3.2 - 4.2 V ECU Throttle Position Sensor +B (+B1) E2 IDL VTA VC E2 IDL VTA VC E1 FI1366 IDL - E2 1. There is no voltage between ECU terminals IDL and E2. (IG SW ON) (Throttle valve open) 2. Check that there is voltage between ECU terminal +B (+B1) and body ground. (IG SW ON) NO | OK Check wiring between ECU terminal E1 and body ground. OK | BAD Try another ECU. | Repair or replace. BAD Refer to No. 1. (See page FI-54) | Repair or replace. OK (See page FI-101) 3. Check throttle position sensor. BAD | BAD | OK Repair or replace | Check wiring between ECU and throttle position sensor. OK Try another ECU. VC VTA IDL E2 Ohmmeter FI2635