Check Fuel Pressure
- IG KEY "OFF".
- Disconnect fuel pump relay from junction box in passenger compartment.
- Start engine and await until engine is off and then, IG "OFF"
- Connect fuel pump relay again.
- Connect fuel pressure gauge on the fuel filter with fuel pressure gauge adaptor.
- Start engine again and measure fuel pressure.
Specification: 429 ~ 469 kPa (4.38 ~ 4.79 kgf/cm2 , 62.3 ~ 68.1 psi)
- Is the fuel pressure normal?
YES
- Go to Component Inspection procedure below.
NO
- Check any damage of fuel return hose or pipe.
- Check any stuck of the valve in the fuel pressure regulator.
- Repair or replace as necessary and then, go to "Verification of Vehicle Repair " procedure.