H42 - Check Fuel Pressure

WARNING: THE FUEL SYSTEM IS PRESSURIZED WHEN THE ENGINE IS NOT RUNNING. TO PREVENT INJURY OR FIRE, USE CAUTION WHEN WORKING ON THE FUEL SYSTEM.

- Key Off.

- Install fuel pressure gauge.

- Verify vacuum source to fuel regulator.

If engine will start:

- Start engine and idle. Record fuel pressure.

- Increase engine speed to 2500 rpm and maintain for one minute. Record fuel pressure.

No Start:

- Cycle key On and Off several times. Record fuel pressure.

- Is the fuel pressure between 30-45 psi (210-310 kPa)?

YES -- Fuel system is capable of required fuel pressure. Go to H43. H43 - Check System Ability to Hold Fuel Pressure

NO -- Fuel pressure out of specification. Refer to Fuel Delivery and Air Induction for additional testing.