Idle Regulation Valve

Disconnect fuel pump relay. Connect an ohmmeter between wire No. 751 of fuel pump relay connector and pin No. 10 of fuel injection ECU connector. Resistance should be 19-25 ohms. If circuit is faulty, possible circuit continuity problem.

Connect an ohmmeter between wire No. 751 of fuel pump relay connector and pin No. 23 of fuel injection ECU connector. Resistance should be 17-22,500 ohms. If circuit is faulty, possible problem with idle regulation valve.