Fuel Line Pressure Inspection
- Check the fuel for excessive water, alcohol, or other contaminants. Replace contaminated fuel as necessary.
- Install a fuel pressure gage.
- Inspect fuel pressure with normal idle status.
Specification: 440 ~ 460 kPa (4.48 ~ 4.69 kg/cm2 , 63 ~ 66 psi)
- Is fuel pressure within the specified value?
YES
- Go to next step as below.
NO
- Inspect the suspected area. Refer to table below. Repair or replace as necessary and Go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Condition Possible Cause Suspected Area Fuel Pressure too low Clogged fuel filter Fuel filter Fuel leak on the fuel - pressure regulator that is assembled on fuel pump Fuel Pump (Fuel Pressure Regulator) Fuel Pressure too High Sticking fuel pressure regulator Fuel Pump (Fuel Pressure Regulator)