Component Tests

If reduction of fuel supply is suspected, perform checking as follows.

Preparation:
- Make sure that there is fuel in the tank.
- With the engine running, check the fuel feed pipe and hose from fuel tank to injector for evidence of leakage.
- Retighten, if pipe or hose connection is loose. Also, check pipes and hoses for squashing or clogging.

1. Receive the hose from fuel feed pipe with a clean container, and check for fuel pump flow rate.




2. Connect the pump relay terminals with a jumper wire as shown and start the fuel pump to measure delivery.

CAUTION: Never generate sparks when connecting a jumper wire.




If the measure value is out of standard, conduct the pressure test. Refer to Fuel Pressure.