Fuel Pressure: Testing and Inspection

Fuel Pressure Check
- Make sure that clamp screws do not contact adjacent parts.
- Use a torque driver to tighten clamps.
- Use Fuel Pressure Gauge Kit J-44321 to check fuel pressure.
- Do not perform fuel pressure check with system operating. Fuel pressure gauge may indicate false readings.

1. Release fuel pressure to zero.




2. Disconnect fuel hose from fuel feed tube (engine side) using fuel tube quick connect removal tool.
3. Release quick connector and disconnect fuel hose from fuel feed tube (underbody side). Remove fuel hose assembly.

CAUTION: Do not install hose clamps over flared portions of fuel feed tubes or damage to fuel feed tubes may result.




4. Install fuel pressure gauge from kit J-44321 between fuel tubes using hose and clamps from kit.
5. Turn ignition switch "ON" and check for fuel leakage.
6. Start engine and read the indication on fuel pressure gauge.

At idle speed: Approximately 350 kPa (3.57 kg/sq.cm, 51 psi)

If results are unsatisfactory, check for fuel leakage in fuel line between fuel tank and injector, and check fuel filter for clogging.

If fuel line and fuel filter are OK, replace fuel pressure regulator.