Installation Procedure

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

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

IMPORTANT: 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.

Fig 1: Removing/Installing Fuel Pressure Sensor From Fuel Injection Fuel Rail

Courtesy of GENERAL MOTORS CORP.

Install the NEW fuel pressure sensor (1) to the fuel injection fuel rail (2) hand tight.
Remove the NEW fuel injection fuel rail fuel pressure sensor, re-lubricate following steps 1 and 2 above.

NOTE: Refer to Fastener Notice .

Install the NEW fuel pressure sensor (1) to the fuel injection fuel rail (2).
Tighten: Tighten the sensor to 33 N.m (25 lb ft).
Connect the fuel injector wiring harness electrical connector to the fuel pressure sensor.
Install the foam insulator from the fuel rails.
Install the low side fuel pressure service port cap.

IMPORTANT: If a fuel leak accrues at the fuel rail, the fuel rail will need to be replaced.

Inspect for fuel leaks using the following procedure:
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.
Install the intake manifold. Refer to Intake Manifold Replacement .
Install the cross vehicle brace. Refer to Cross Vehicle Brace Replacement .