Fuel Pressure Regulator VSV Control Circuit
- Check fuel pressure regulator VSV. See FUEL PRESSURE REGULATOR VACUUM SWITCHING VALVE (VSV) . If VSV is okay, remove glove box. Turn ignition on. Leave harness connectors attached to ECM. Measure voltage between chassis ground and terminal No. 15 (Yellow/Black wire) of ECM connector E9. To identify ECM connectors and terminals, see Figure.
- If battery voltage is present, VSV circuit is okay. If battery voltage is not present, check circuit between ECM and VSV, and between VSV and EFI main relay. If circuit is okay, replace ECM.