Checking Fuel Pressure

Setup

You can tap in a fuel pressure gauge in the line going into the fuel rail from the driver side. Locate the fuse box near drive side mount and look behind it. You should see a metal fuel line connected with a clamp to a fuel hose running to the metal fuel rail on top of the engine.

• Start the car
• Remove fuse 22 (fuel pump) and wait for car to choke
• Shut off the car and unplug battery (safety)
• Unscrew the clamp and take out the hose from metal rail near fuse box
• Put the hose into pressure gauge on one end and use a piece of new fuel hose on another end and clamp it to the metal fuel line.
• Make sure everything is tight, turn on ignition and check for leaks. Turn on ignition on and off about 5 times to build up initial pressure.
• Start the car and read the fuel gauge.

Specifications

• 3.5 BAR, +/- .02 BAR
• 50 PSI, +/- 3 PSI

Testing for leaks

After testing fuel pressure, shut the car off and note the current pressure. After 20 minutes the pressure should not drop more then 0.5 bar. If it does you have a leak or faulty fuel pump check valve.