Installation Procedure

NOTE: Applying force to the plastic housing of the sensor will destroy the sensor. To tighten or loosen, only apply force 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.

Lubricate the threads and the sealing cone in the fuel rail with silicon free engine oil GM P/N 12345610 (Canadian P/N 993193) or equivalent.
Lubricate the threads and sealing cone on the NEW fuel injection fuel rail fuel pressure sensor with silicon free engine oil GM P/N 12345610 (Canadian P/N 993193) or equivalent.
Install the NEW fuel pressure sensor (1) to the fuel injection fuel rail (2) hand tight.

Fig 1: Removing/Installing Fuel Pressure Sensor From Fuel Injection Fuel Rail
Courtesy of GENERAL MOTORS COMPANY
Remove the NEW fuel injection fuel rail fuel pressure sensor, re-lubricate following steps 1 and 2 above.
Install the NEW fuel pressure sensor (1) to the fuel injection fuel rail (2) and tighten to 33 N.m (25 lb ft).
CAUTION: Refer to Fastener Caution
Connect the fuel pressure sensor electrical connector.
Install the foam insulator from the fuel rails.
Install the intake manifold. Refer to Intake Manifold Replacement
Inspect for fuel leaks using the following procedure:
NOTE: If a fuel leak accrues at the fuel rail, the fuel rail will need to be replaced.
1. Turn ON the ignition, with the engine OFF for 2 seconds.
2. Turn OFF the ignition, for 10 seconds.
3. Turn ON the ignition, with the engine OFF.
4. Inspect for fuel leaks.