Component Tests and General Diagnostics

1. Release fuel pressure.

Fuel Pressure Release

2. Disconnect the negative battery cable.




3. Connect a fuel pressure gauge between the fuel distributors RH and LH (Install clamps as shown).
4. Connect the negative battery cable.
5. Start the engine and let it idle.
6. Measure the fuel line pressure after approx. 2 minutes.

Fuel pressure: 210-250 kPa (30-36 psi)




7. Disconnect the vacuum hose from the pressure regulator and measure the fuel line pressure.

Fuel pressure: 210-310 kPa (39-45 psi)

8. If not as specified, replace the pressure regulator.
9. Complete the "AFTER REPAIR PROCEDURE".