Vortech 2004 Pontiac GTO - Manual (Page 16)

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P/N: 4GJ020-010
©2004 Vortech Engineering, LLC
All Rights Reserved, Intl. Copr. Secured
28SEP04 v1.0 GTO(4GJ020-010v1.0)
6. FUEL INJECTOR REPLACEMENT
A. Relieve the fuel system pressure.
B. Disconnect the eight fuel injector wiring clips
and retainers from the injectors.
C. Remove the four 10mm bolts holding down
the fuel rails on the intake manifold. Lift up
on the rails evenly, removing all eight injec-
tors.
D. Using a small amount of clean motor oil,
lightly lubricate the O-rings on both ends of
the Vortech supplied fuel injectors.
E. Install the new injectors into the fuel rails with
the terminals facing outward.
F. Carefully lower the fuel rail/injector assembly
down onto the intake manifold. Check to see
that the injector has been seated properly
into the manifold.
G. Tighten down the fuel rail assembly with the
original bolts and attach the wiring clips to the
injector terminals.
NOTE: Do not reinstall factory injector retaining clips