Fuel Pressure: Testing and Inspection

NOTE: Check for a clogged fuel filter and/or fuel line before checking fuel pump pressure.

1. Connect a jumper wire between the 1st and 2nd terminals at the fuel pump cut-off relay connector.

WARNING: Do not smoke during the test. Keep any open flame away from your work area.




2. Disconnect the fuel line at the fuel filter in the engine compartment, and connect a pressure gauge to it as shown.
3. Turn ignition ON until pressure stabilizes, then turn key OFF. Pressure should be 16.7-21.6 kPa (2.4-3.1 psi).
a. If gauge shows at least 16.7 kPa (2.4 psi) go on to step 4.
b. If gauge shows less than 16.7 kPa (2.4 psi), replace pump and re-test.

NOTE: Check for a clogged fuel filter and/or fuel line before replacing pump.




4. Remove pressure gauge and hold a graduated container under the hose.
5. Turn ignition ON, measure amount of fuel flow for 60 seconds, then turn ignition OFF. Fuel flow should be more than 5OOcc (17 oz.) in 60 seconds with battery voltage.
a. If fuel flow is 5OOcc (17 oz.) or more in 60 seconds, reconnect cut-off relay and fuel hose.
b. If fuel flow is less than 5OOcc (17 oz.) replace the fuel pump and re-test.

NOTE: Check for a clogged fuel filter and/or fuel line before replacing pump.