Civic GX Sedan L4-1.6L CNG (1998)
Fuel Pressure Control Solenoid: Testing and Inspection
Fuel Pressure Regulator Shut-off Solenoid Valve
Testing
1. Disconnect the fuel pressure regulator shut-off solenoid valve 2P connector.
2. Connect the PGM-FI main relay 7P connector terminals No. 4 and No. 5 with a jumper wire.
3. Check that battery voltage is available between the fuel pressure regulator shut-off solenoid valve 2P connector terminal No. 2 and body ground.
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If battery voltage is available, check the fuel pressure regulator shut-off solenoid valve ground. If the ground is OK, replace the fuel pressure
regulator shut-off solenoid valve.
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If there is no voltage, check the wire harness.