Diesel Fuel Pressure Sensor Testing

Start the scope to see live data.

Diesel fuel pressure sensor testing.

Check the fuel rail pressure sensor voltage at key on engine off. A car with a port injected pump should yield a reading between 30 and 80 psi. Although the pressure sensor is often the cause of a p0452 or p0453 there are other possible causes. The fuel tank pressure sensor has the final say in telling the computer if the tank pressure is holding during a key on pressure test.

Glowshift fuel pressure bleeder screw sensor thread adapter for chevy gm 6 6l duramax diesel installs to fuel filter housing includes o ring 4 7 out of 5 stars 6 7 99 7. Testing the fuel pressure. To check the ground wire check for voltage by back probing the connector with it connected. Turn the ignition key and then the engine and record the pressure readings both times.

Install the pressure tester to the test port when the engine is cold. Minimize the help page. Connect picoscope channel a to the signal circuit. Glowshift tinted 7 color 30 psi fuel pressure gauge kit includes electronic sensor black dial smoked lens for diesel trucks 2 1 16 52mm 4 2 out of 5 stars 49 84 99 84.

Ensure the engine is stopped. If this sensor isn t working correctly the computer gets false information and turns on the check engine light. It should be about 0 5 volts.