Fuel Line Pressure Inspection

Description:

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

1. Disconnect the negative battery cable.
2. Install a fuel pressure gauge between the filter and the fuel main hose. Install clamps as shown in image.
3. Connect the negative battery cable.
4. Connect the data link connector (DLC) terminals F/P and GND with a jumper wire.
5. Turn the ignition switch ON.
6. Measure the fuel line pressure.

Fuel line pressure: 38 - 46 psi (265 - 314 kPa)

Pressure low
Measure Fuel Pump Maximum Pressure. If as specified, fuel line or fuel filter might be clogged or restricted.

Pressure high
Replace pressure regulator.