Civic L4-1.8L CNG (2008)
Fuel Pressure Sensor/Switch: Service and Repair
Fuel Rail Pressure Sensor Replacement
Fuel Rail Pressure Sensor Replacement
1. Relieve fuel pressure between the engine and the manual shut-off valve.
2. Remove the cowl cover and under-cowl panel,
3. Remove the fuel feed hose (A).
4. Remove the fuel rail pressure sensor (B).
5. Apply silicone oil or polyalkyleneglycol (PAG) oil to a new O-ring (C) and carefully install it into its proper position.
6. Install the parts in the reverse order of removal.
7. Do the leak inspection procedure.
