Fuel Pump Hold Pressure Inspection

WARNING: Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and damage. Always carry out the following procedure with the engine stopped.

CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting using a cloth or soft brush, and make sure that it is free of foreign material.

NOTE: Perform the following test only when directed.

1. Complete the "BEFORE REPAIR PROCEDURE".
2. Disconnect the negative battery cable.
3. Lift up the vehicle with safety stands.
4. Remove the fuel filter cover.
5. Verify that the quick release connector joint area is free of foreign material.
6. Clean as necessary.




7. Set the SST to the fuel filter outlet pipe and push into the quick release connector and disconnect the fuel pipe.
- If removal of the retainer is required, remove it by squeezing the tabs of the retainer.

CAUTION: Removing the retainer from the disconnected fuel pipe will reduce the effectiveness of the retainer. The retainer must be replaced when any of the following applies.
1. Scratches or damage is observed on the retainer.
2. Fuel pipe has been replaced.
3. Fuel filter (high-pressure) has been replaced.

8. Cover the disconnected quick release connector to prevent them from being scratched or contaminated with foreign material.




9. Turn the lever as shown to plug the SST outlet.
10. Push the SST into the fuel filter outlet pipe until a click is heard.
11. Connect a fuel hose and clamp to the SST outlet pipe.
12. Set the fuel hose into a container to avoid fuel spills.
13. Pull the quick release connector by hand and verify that it is installed securely.
14. Connect the negative battery cable.

CAUTION: Connecting the wrong DLC terminals may possibly cause a malfunction. Carefully connect the specified terminals only.




15. Short DLC terminals F/P and body GND using a jumper wire.
16. Turn the ignition switch to ON for 10 seconds to operate the fuel pump.
17. Turn the ignition switch to the LOCK position.
18. Measure the fuel pump hold pressure after 5 minutes.

Fuel pump hold pressure
More than 343 kPa {3.5 kgf/sq.cm, 50 psi}

19. Disconnect the jumper wire.
- If not as specified, replace the fuel pump.

20. Disconnect the SST.
21. Inspect the fuel pipe for kinks.
22. Replace the fuel pipe if necessary.
23. Verify that the inside of the fuel filter outlet pipe and the quick release connector is free of foreign material and damage.
24. Clean as necessary, taking care not to damage the sealing surfaces.
25. Push the fuel pipe into the fuel filter outlet pipe until a click is heard.
26. Pull the quick release connector by hand and verify that it is installed securely.
27. Complete the "AFTER REPAIR PROCEDURE".