Fuel Pressure

WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 1992 Mercury Tracer, 1992 Mercury Topaz, 1992 Mercury Sable, 1992 Mercury Grand Marquis, and 1992 Mercury Cougar. However, it is still accessible from the selected car via links, so may be relevant.

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)