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Home >> Isuzu >> 1994 >> Trooper S, Automatic >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul >> Fuel System (Fuel Injection) >> Fuel System Pressure Release >> MFI
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Fuel System Pressure Release: MFI

  1. Loosen fuel filler cap to relieve tank pressure. Remove fuel pump relay from underhood fuse/relay box. See FUEL PUMP RELAY LOCATION (MFI) table.
  2. Start engine, and allow it to run until it stalls. Loosen hose clamp of fuel line on side of pressure regulator coming from fuel line inlet distributor pipe.
  3. Cover fuel hose using a shop towel. Slowly pull hose from pressure regulator to relieve fuel pressure. When fuel stops leaking, reinstall hose and clamp.
FUEL PUMP RELAY LOCATION (MFI)

Model Location
Trooper In Right Fenderwell Relay Box
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