Fuel Hold Pressure

Description:

HOLD PRESSURE INSPECTION
Conduct this inspection if the fuel pressure hold inspection is not as specified.

WARNING: Before performing the following operation, perform Fuel Pressure Release Procedure to remove pressure from the fuel system to reduce the possibility of injury or fire.

1. Disconnect the negative battery terminal.
2. Connect a fuel pressure gauge between the fuel filter and the fuel rail hose. (Install clamps as in image.)
3. Connect the negative battery terminal.
4. Connect the data link connector (DLC) terminals F/P and GND with a jumper wire.
5. Turn the ignition switch ON for 10 seconds to operate the fuel pump.
6. Turn the ignition switch OFF and disconnect the jumper wire.
7. Pinch the fuel return hose with pliers,
8. Observe the fuel pressure for 5 minutes.

Fuel pressure: More than 21 psi (147 kPa)

9. If not as specified, replace the pressure regulator.