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)