Vortech 2003-2004 Mustang Mach 1 User Manual
Page 16
P/N: 4FR020-010
©2004 Vortech Engineering, LLC
All Rights Reserved, Intl. Copr. Secured
23AUG04 86-93 4V Mus. Cobra(4FR v3.1)
P/N: 4FR020-010
©2004 Vortech Engineering, LLC
All Rights Reserved, Intl. Copr. Secured
23AUG04 86-93 4V Mus. Cobra(4FR v3.1)
4
4. FUEL PUMP INSTALLATION, cont'd.
J. Using the supplied fuel pump, reassemble the
fuel pump assembly and canister with cap.
K. Reinstall the canister assembly into the fuel
tank
and reattach the electrical connections.
L. Reinstall the fuel tank, reconnect the fuel fil-
ter inlet line, reattach the fuel filler neck and
reinstall the fuel cap.
M. Turn the ignition key on and check the fuel
pump for leaks.
5. FUEL INJECTOR REPLACEMENT
A. Disconnect the EGR tube from the EGR valve at
the back of the intake manifold. Remove all bolts
securing the upper manifold to the lower manifold.
Unplug the electrical connector from the throttle
body. The upper manifold should now move up
enough to access all fuel injectors.
B. Disconnect the eight (8) fuel injector wiring clips
and retainers from the fuel injectors. Release any
residual fuel pressure from the rail by opening the
schrader valve on the rail. Have a fire extinguisher
nearby and use extreme caution.
C. Remove the bolts holding down the factory fuel
rail onto the intake manifold. Lift up on to the rails
evenly, removing all eight (8) injectors.
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 each injector has been seated properly into
the manifold.
G. Tighten down the fuel rail assembly with the
original bolts.
H. Use supplied jumper harnesses to connect the
factory fuel injector plug to the newly installed
fuel injectors (see Fig. 5-a).
I. Reinstall all components removed in step A.
Vortech supplied
fuel injector
Vortech supplied jumper har-
ness (5W001-051)
Factory fuel
injector plug
Fig. 5-a