Do it yourself guide: Changing CPI
#1
01-02-2010, 10:53 PM
Do it yourself guide: Changing CPI
- Remove the plastic cover and properly relieve the fuel system pressure.
- Disconnect the negative battery cable, then remove the air cleaner and air inlet duct.
- Unplug the wiring harness from the necessary upper intake components
- Disconnect the throttle linkage from the upper intake manifold, then remove the ignition coil.
- Disconnect the PCV hose at the rear of the upper intake manifold, then tag and unplug the vacuum hoses from both the front and rear of the upper intake.
- Remove the upper intake manifold bolts and studs, making sure to note or mark the location of all studs to assure proper installation. Remove the upper intake manifold from the engine
- Unplug the injector wiring harness connector at the CMFI assembly.
- Remove and discard the fuel fitting clip.
- Disconnect the fuel inlet and return tube and fitting assembly. Discard the old O-rings.
- Squeeze the poppet nozzle locktabs together while lifting each nozzle out of the casting socket. Once all six nozzles are released, carefully lift the CMFI assembly out of the casting
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