Direct Fuel Injection
Page 3B-48 90-8M0050731 MAY 2011
5. Secure the fuse holder, low‑pressure fuel boost pump, and the lift pump connectors fuel pump with a cable tie.
6. Secure the low‑pressure fuel pump connector and the fuse holder to the boost pump with a cable tie.
a - Lift pump connector
b - Low‑pressure fuel boost pump connector
c - Fuse holder
d - Cable tie
7. Install 18.3 mm hose clamps onto the high‑pressure fuel hose and low‑pressure fuel return hose.
8. Install the fuel hoses and crimp the 18.3 mm hose clamps with the hose clamp tool.
IMPORTANT: Use tool 91‑803146T or Snap‑On equivalent YA3080 to crimp the full circle hose clamp. Using a different tool
could result in a crimp that is too loose or too tight. Do not use a screw type hose clamp as it may damage the hose.
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9. Secure the high‑pressure fuel hose and the low‑pressure fuel return hose together with a cable tie. Do not overtighten the
cable tie.
10. Install the air vent hose to the VST. Secure the hose with a cable tie.
11. Install the fuel hose to the lift pump inlet. Secure with a hose clamp.
12. Connect the high‑pressure fuel pump connector to the engine harness connector. Secure the fuel pump harness connectors
to the high‑pressure fuel hose with a cable tie.
a - High‑pressure fuel outlet
hose (18.3 mm hose clamp)
b - Fuel return hose (from fuel
regulator) (18.3 mm hose
clamp)
c - Drain plug
d - Air vent hose (to fuel tank)
(cable tie)
e - Lift pump fuel inlet
f - High‑pressure fuel pump
electrical connector
g - Cable tie
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