Fuel Pressure Regulator Control Inspection

WARNING
- Fuel line spills and leaks can be dangerous. Fuel can Ignite and cause serious injuries or death and can damage the vehicle. Fuel can also irritate skin and eyes. To prevent this from happening, release the fuel pressure according to "Fuel Line Safety Procedures."




1. Remove the fuel pump relay.




2. Connect a fuel pressure gauge to the main hose.
3. Connect the fuel pump relay.
4. Start the engine and run it at idle.
5. Verify the fuel pressure.

Fuel line pressure
187-225 kPa (1.9-2.3 kgf/cm2, 28-32 psi)

6. Short the ECM (Engine Control Module) Terminal 4M and verify that fuel pressure.


Fuel line pressure
245-264 kPa (2.5-2.7 kgf/cm2, 36-38 psi)

7. If not as specified, check the pressure regulator and solenoid valve.