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Home >> Cadillac >> 2010 >> CTS V, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 6.2L - Repair Instructions >> Repair Instructions >> Fuel Injection Fuel Rail Assembly Replacement >> Installation Procedure
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Installation Procedure

  1. Install the fuel injectors if removed. Refer to Fuel Injector Replacement .
    2. Fig 1: Identifying Fuel Injection Wiring Harness
    GM2164127Courtesy of GENERAL MOTORS CORP.
  2. Install the fuel injection wiring harness (1, 2) to the fuel rail and fuel injectors.
    3. Fig 2: Identifying Fuel Rail Ball Stud Fasteners
    GM2164123Courtesy of GENERAL MOTORS CORP.
  3. install the fuel rail wit the fuel injector harness (2) to the engine.
  4. Carefully locate the fuel injectors into the supercharger. Install the left side first and then the right side.
  5. Apply threadlock to the ball stud and fastener threads. Refer to Adhesives, Fluids, Lubricants, and Sealers .
    6. CAUTION: Refer to Fastener Caution .
  6. Instal the ball studs (1) and the forward fastener and tighten to 10 N.m (89 lb in).
    7. Fig 3: Identifying Ignition Coil Harness Connector
    GM2157868Courtesy of GENERAL MOTORS CORP.
  7. Connect all 8 ignition coil harness connectors (1).
    8. Fig 4: Identifying Connectors
    GM2164120Courtesy of GENERAL MOTORS CORP.
  8. Connect the fuel injection Harness connectors (1, 2).
  9. Connect the barometric pressure sensor harness connector (5).
  10. Connect the supercharger air output sensor harness connector (3).
  11. Connect the intake temperature sensor harness connector (4).
  12. Connect the fuel pipe to the fuel rail. Refer to Metal Collar Quick Connect Fitting Service 
  13. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (Sedan,Wagon) .
  14. Pressure the fuel system and check for fuel leaks.
  15. Install the front and rear intake manifold covers. Refer to Intake Manifold Cover Replacement - Rear .
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