Fuel Pressure Hold Inspection

Fuel Pressure Hold Inspection

WARNING: Before performing the following operation, release the fuel pressure from the fuel system to reduce the possibility ot injury fire. 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. Install a fuel pressure gauge as shown.
3. Connect the negative battery terminal.




4. Connect the diagnosis connector terminals F/P and GND with a jumper wire.
5. Turn the ignition switch ON for 10 seconds to operate the fuel pump.
6. Turn the ignition switch OFF and disconnect the jumper wire.
7. Observe the fuel pressure 5 minutes.

Fuel pressure: More than 150 kPa (21 psi)

8. If not as specified, perform the following inspections.
- Fuel pump hold pressure.
- Pressure regulator fuel line pressure.
- Injector fuel leakage.