Installation Procedure

Lubricate the threads and sealing surface of the NEW fuel rail pressure sensor with one drop of clean engine oil.

Fig 1: Fuel Injection Fuel Rail Assembly, Fuel Injection Fuel Rail Pressure Sensor And Electrical Connector
Courtesy of GENERAL MOTORS COMPANY

NOTE: Applying force to the plastic housing of the sensor may damage the sensor. To tighten or loosen, apply force only to the attached hexagon.

NOTE: Ensure that the fuel rail threads have been cleaned of any excess fuel or the NEW fuel injection fuel rail fuel pressure sensor will NOT seal properly.
Install the NEW fuel rail pressure sensor (2) to fuel injection fuel rail (3) and hand tighten.
Fuel Injection Fuel Rail Fuel Pressure Sensor (1)» Remove @ Fuel Injection Fuel Rail Assembly (3)
Re-lubricate with one drop of clean engine oil.
Fuel Injection Fuel Rail Fuel Pressure Sensor (1)» Install and tighten 32 N.m (24 lb ft).
CAUTION: Refer to Fastener Caution .
Connect the electrical connector (2).
Inspect for fuel leaks using the following procedure:
1. Turn the ignition ON, with the engine OFF for 2 seconds
2. Turn OFF the ignition. for 10 seconds.
3. Ignition On, engine Off.
4. Inspect for fuel leaks, using tissue paper or hydrocarbon sniffer.
5. Start vehicle and re-inspect for fuel leaks with engine at idle.
6. Re-inspect for fuel leaks with engine at 3, 000 rpm no load.
Engine Sight Shield Replacement » Install
Battery Negative Cable Disconnection and Connection » Connect