Toyota Supra 1990 Manual page 222

Hide thumbs Also See for Supra 1990:

Table of Contents

EFI SYSTEM - Troubleshooting with Volt/Ohmmeter (7M-GE)

California vehicles only

..1'"""""""1

EG R Gas Temp. Sensor

There is voltage between ECU terminals THG and E2.

1 (lG SW ON)

Check that there is voltage between ECU terminal +B (+B 1) and

body ground.

I~==:::::::"-.J

Refer to No.1.

Check wiring between ECU terminal E1 and body ground.

Repair or replace.

Check EGR system.

Repair or replace.

Check EGR gas temp. sensor.

(See page FI-118)

Replace EGR gas temp.

Check wiring between ECU and

EG R gas temp. sensor.

Try another ECU.

Repair or replace.

Chapters

Table of Contents