| Engine | KOER psi (kg/cm 2 ) | KOEO psi (kg/cm 2 ) |
|---|
| 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) |
1991 FUEL PRESSURE SPECIFICATIONS (EEC-IV - CARS)
| Engine | KOER psi (kg/cm 2 ) | KOEO psi (kg/cm 2 ) |
|---|
| 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) |
1991 FUEL PRESSURE SPECIFICATIONS (EEC-IV - TRUCKS)
| Engine | KOER psi (kg/cm 2 ) | KOEO psi (kg/cm 2 ) |
|---|
| 7.3L | 41-55 (2.9-3.9) | NA |
1991 FUEL PRESSURE SPECIFICATIONS (DIESEL - TRUCKS)
| Engine | KOER psi (kg/cm 2 ) | KOEO psi (kg/cm 2 ) |
|---|
| 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) |
| (1) Fuel pressure should be 30-37 psi (2.1-2.6 kg/cm 2 ) with engine running and vacuum hose connected to fuel pressure regulator. Fuel pressure should be 38-45 psi (2.7-3.2 kg/cm 2 ) with engine running and vacuum hose disconnected to fuel pressure regulator. |
| (1) | Fuel pressure should be 30-37 psi (2.1-2.6 kg/cm 2 ) with engine running and vacuum hose connected to fuel pressure regulator. Fuel pressure should be 38-45 psi (2.7-3.2 kg/cm 2 ) with engine running and vacuum hose disconnected to fuel pressure regulator. |
1991 FUEL PRESSURE SPECIFICATIONS (EEC - CARS)
