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Home >> Cadillac >> 2018 >> CT6 Plug-In >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 2.0L (LTG) - Repair Instructions >> Repair Instructions >> Fuel Injection Fuel Rail Fuel Pressure Sensor Replacement >> Installation Procedure

Installation Procedure

  1. GM4258482Courtesy of GENERAL MOTORS COMPANY
    NOTE:
    • Do NOT apply force to the plastic housing of the fuel injection fuel rail fuel pressure sensor. ONLY apply force to the attached hexagon.
    • BEFORE installation of the fuel injection fuel rail fuel pressure sensor, the fuel injection fuel rail threads MUST be clean and free of any fuel or the sensor will NOT seal properly.

    To install the fuel injection fuel rail fuel 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).
  2. Connect the electrical connector (1).
  3. Connect the battery negative cable. Battery Negative Cable Disconnection and Connection
  4. NOTE:

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

  5. Pressurize the fuel system and inspect for leaks.
  6. Fuel Injection Fuel Rail Noise Shield - Install - Fuel Injection Fuel Rail Noise Shield Replacement 
  7. Intake Manifold - Install - Intake Manifold Replacement (Except Hybrid)Intake Manifold Replacement (Hybrid)
  8. Perform the fuel injection small quantity data reset. Fuel Injection Small Quantity Data Reset