Fuel Pump: Testing and Inspection

Inspection/ Fuel Pump Operation
1. Connect the data link connector terminals F/P and GND with a jumper wire.
2. Remove the fuel filler cap.
3. Turn the ignition switch ON.
4. Listen for operational sound of the fuel pump at the filler inlet.
5. Install the fuel filler cap.
6. If no sound was heard, measure the voltage the fuel pump connector wire W/R.

Voltage: Battery positive voltage

7. If not correct, check the fuel pump relay and its circuits.




8. If the voltage is normal, check for continuity between fuel pump connector A and B.
9. If there is no continuity, replace the fuel pump.

Fuel Pump Maximum Pressure

WARNING
- Fuel line spills and leaks are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete the "Fuel Line Safety Procedures."

1. Disconnect the negative battery terminal.




2. Connect a fuel pressure gauge to the fuel main pipe and plug the outlet of the gauge as shown. (Install clamps as shown.)
3. Connect the negative battery terminal.




4. Connect data link connector terminals F/P and GND with a jumper wire.
5. Turn the ignition switch ON to operate the fuel pump.
6. Measure the pump maximum pressure.

Fuel pump maximum pressure:
491-735 kPa (5.0-7.5 kgf/cm2, 71.1-106.6 psi)

7. Turn the ignition switch OFF and disconnect the jumper wire.
8. If not as specified, replace the fuel pump.




Continuity Inspection
1. Be move the luggage room carpet.
2. Remove the acoustic wave guide assembly. (if equipped)
3. Disconnect the fuel pump connector.




4. Check for continuity between the fuel pump connector A and B.
5. If there is none, replace the fuel pump.