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Fuel Pressure

1994 FUEL PRESSURE SPECIFICATIONS (CARS - EEC- GASOLINE)

Engine (1) KOER psi (kg/cm2 ) KOEO psi (kg/cm2 )
1.3L (2) 30-38 (2.1-2.7) (3)(4)
1.6L (5) 27-34 (1.9-2.4) (6) 64-85 (4.5-6.0)
1.8L (7) 31-38 (2.2-2.7) (4) 64-85 (4.5-6.0)
2.0L (8) 30-38 (2.1-2.7) (4) 64-92 (4.5-6.5)
2.5L (8) 30-35 (2.1-2.5) (4) 72-92 (5.1-6.5)
3.0L 35-38 (2.5-2.7) 40-43 (2.8-3.0)
(1) Specification is with engine running and vacuum hose connected to fuel pressure regulator.
(2) Fuel pressure should be 38-45 psi (2.7-3.2 kg/cm2 ) with engine running and vacuum hose disconnected from fuel pressure regulator.
(3) Fuel pressure should be 50 psi (3.5 kg/cm2 ) or more.
(4) Fuel pressure should be 38-45 psi (2.7-3.2 kg/cm2 ) with ignition switch off, engine not running and a jumper wire is connected between ground and fuel pump terminal at data link connector.
(5) Fuel pressure should be 35-43 psi (2.5-3.0 kg/cm2 ) with engine running and vacuum hose disconnected from fuel pressure regulator.
(6) Fuel pressure should be 38-42 psi (2.7-3.0 kg/cm2 ) with ignition switch off, engine not running and a jumper wire is connected between ground and fuel pump terminal at data link connector.
(7) Fuel pressure should be 40-49 psi (2.8-3.4 kg/cm2 ) with engine running and vacuum hose disconnected from fuel pressure regulator.
(8) Fuel pressure should be 38-45 psi (2.7-3.2 kg/cm2 ) with engine running and vacuum hose disconnected from fuel pressure regulator.
1994 FUEL PRESSURE SPECIFICATIONS (EEC-V)

Engine KOER psi (kg/cm2 ) KOEO psi (kg/cm2 )
3.0L Ranger (1) 35-45 (2.5-3.2)
3.8L Mustang (1) 35-45 (2.5-3.2)
4.6L Thunderbird (1) 35-45 (2.5-3.2)
4.6L Cougar (1) 35-45 (2.5-3.2)
(1) Information is not available from manufacturer.
1994 FUEL PRESSURE SPECIFICATIONS (CARS - EEC-IV - GASOLINE)

Engine KOER psi (kg/cm2 ) KOEO psi (kg/cm2 )
2.3L HSC MFI 45-60 (3.2-4.2) 50-60 (3.5-4.2)
3.0L SHO SFI 28-33 (2.0-2.3) 30-45 (2.1-3.2)
3.8L SC SFI 28-54 (2.0-3.8) 35-45 (2.5-3.2)
All Others 35-45 (2.5-3.2) 35-45 (2.5-3.2)
1994 FUEL PRESSURE SPECIFICATIONS (TRUCKS - EEC-IV - GASOLINE)

Engine KOER psi (kg/cm2 ) KOEO psi (kg/cm2 )
4.9L MFI 45-60 (3.2-4.2) 50-60 (3.5-4.2)
All Others 28-45 (2.0-3.2) 35-45 (2.5-3.2)
1994 FUEL PRESSURE SPECIFICATIONS (TRUCKS - 7.3L DIESEL)

Application psi (kg/cm2 )
VIN K & M
At Fuel Filter Inlet (1) 2 (.14)
At Fuel Filter Outlet (2) 1 (.07)
At Fuel Return Line (2) 2 (.14)
VIN F
Fuel Line Pressure (3) 30-70 (2.1-4.9)
(1) Measured at idle.
(2) Measured at 3300 RPM.
(3) Direct Injection (DI) system. Pressure is measured at regulator block. Specification is with engine at high idle/full load.
1994 FUEL PRESSURE SPECIFICATIONS (LPG)

Engine psi (kg/cm2 )
All Models 1.25-1.5 (.09-.11)
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