Installation Procedure

Fig 1: Fuel Injection Fuel Rail, Fuel Rail Pressure Sensor And Electrical Connector

Courtesy of GENERAL MOTORS COMPANY

CAUTION:

NOTE:

Do NOT apply force to the plastic housing of the fuel injection rail fuel pressure sensor. ONLY apply force to the attached hexagon.
BEFORE installation of the fuel injection fuel rail pressure sensor, the fuel rail threads MUST be clean and free of fuel or the sensor will NOT seal properly.

To install the NEW fuel injection fuel rail pressure sensor (2) properly, perform the following steps:
1. Lubricate the sensor threads and sealing surface with one drop of clean engine oil.
2. Install the sensor and hand tighten.
3. Remove the sensor.
4. Re-lubricate the sensor threads and sealing surface with one drop of clean engine oil.
5. Install the sensor and tighten to 33 N.m (24 lb ft).
Connect Electrical Connector (1) @ Fuel Injection Fuel Rail Fuel Pressure Sensor (2)

NOTE:

If a fuel leak occurs at the fuel injection fuel rail, the fuel rail will need to be replaced.

Pressurize the fuel system and inspect for leaks.
Install Fuel Injection Fuel Rail Noise Shield. Refer to Fuel Injection Fuel Rail Noise Shield Replacement
Install Intake Manifold. Refer to Intake Manifold Replacement