Fuel Pressure Sensor: Service and Repair
FUEL RAIL PRESSURE (FRP) SENSOR REPLACEMENTREMOVAL PROCEDURE
1. Remove the air cleaner outlet duct.
2. Remove the exhaust gas recirculation (EGR) cooler tube.
3. Disconnect the fuel rail pressure sensor electrical connector.
4. Prior to removal, clean the fuel pressure sensor and surrounding area thoroughly with solvent, such as GM P/N 12377981 (Canadian P/N 10953463) or equivalent.
5. Using compressed air, thoroughly blow dry the sensor and surrounding area.
6. Remove the fuel pressure sensor (1).
INSTALLATION PROCEDURE
NOTE: Refer to Fastener Notice in Service Precautions.
1. Install the fuel pressure sensor (1).
Tighten
Tighten the sensor to 70 N.m (52 lb ft).
2. Connect the fuel rail pressure sensor electrical connector.
3. Install the EGR cooler tube.
4. Install the air cleaner outlet duct.
5. Prime the fuel system. Refer to Fuel System Priming.
6. Start the engine. If the engine stalls, repeat the above step.
7. Once the engine starts, inspect for fuel leaks.