Relieving Fuel Pressure
- Disconnect fuel pump connector. Crank engine for at least 5 seconds. If engine starts, let it run until it stops. Disconnect fuel hose at pressure regulator and install fuel pressure gauge using "T" connector.
- Start engine and check fuel pressure at idle. See the REGULATED FUEL PRESSURE table. Verify fuel pressure increases as engine speed increases.
REGULATED FUEL PRESSURE
| Application | At Idle: psi (kg/cm2 ) |
|---|---|
| Regulator Vacuum Disconnected | 34-38 (2.4-2.7) |
| Regulator Vacuum Connected | 26-30 (1.8-2.1) |