Fuel Pressure

1992 FUEL PRESSURE SPECIFICATIONS (CARS)

Engine

KOER psi (kg/cm² )

KOEO psi (kg/cm² )

1.3L

25-31 (1.8-2.2)

64-85 (4.5-6.0)

1.6L

28-31 (2.0-2.2)

64-85 (4.5-6.0)

1.8L

⁽¹⁾

64-85 (4.5-6.0)

2.2L

27-33 (1.9-2.3)

64-85 (4.5-6.0)

2.2L Turbo

27-33 (1.9-2.3)

64-85 (4.5-6.0)

2.3L HSC EFI SEFI

45-60 (3.2-4.2)

50-60 (3.5-4.2)

3.0L SHO SEFI

28-33 (2.0-2.3)

30-45 (2.1-3.2)

3.8L SC SEFI

30-40 (2.1-2.8)

35-40 (2.5-2.8)

All Others

30-45 (2.1-3.2)

35-40 (2.5-2.8)

⁽¹⁾	Fuel pressure should be 30-37 psi (2.1-2.6 kg/cm² ) with engine running and vacuum hose connected to fuel pressure regulator. Fuel pressure should be 38-45 psi (2.7-3.2 kg/cm² ) with engine running and vacuum hose disconnected to fuel pressure regulator.

1992 FUEL PRESSURE SPECIFICATIONS (TRUCKS - GASOLINE)

Engine	KOER psi (kg/cm² )	KOEO psi (kg/cm² )
4.9L EFI	45-60 (3.2-4.2)	50-60 (3.5-4.2)
All Others	30-45 (2.1-3.2)	35-45 (2.5-3.2)

1992 FUEL PRESSURE SPECIFICATIONS (TRUCKS - DIESEL)

Engine

psi (kg/cm² )

6.6L & 7.8L

At Fuel Filter Inlet

15-30 (1.05-2.11)

At Fuel Filter Outlet

15-28 (1.05-1.96)

At Fuel Return Line

6 (.42)

7.3L

At Fuel Filter Inlet ⁽¹⁾

2 (.14)

At Fuel Filter Outlet ⁽²⁾

1 (.07)

At Fuel Return Line ⁽²⁾

2 (.14)

⁽¹⁾	Measured at idle.

⁽²⁾	Measured at 3300 RPM.

1992 FUEL PRESSURE SPECIFICATIONS (LPG)

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