Diesel Fuel Pressure Sensor Testing

Ensure the engine is stopped.

Diesel fuel pressure sensor testing.

You will see that picoscope has displayed an example waveform and is preset to capture your waveform. 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. If this sensor isn t working correctly the computer gets false information and turns on the check engine light. Using manufacturer s data identify the output signal circuit for the fuel rail pressure sensor.

Minimize the help page. Connect picoscope channel a to the signal circuit. It should be about 0 5 volts. 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.

To check the ground wire check for voltage by back probing the connector with it connected. 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. Install the pressure tester to the test port when the engine is cold.

Start the scope to see live data. Turn the ignition key and then the engine and record the pressure readings both times. If the fuel rail pressure sensor does not output the correct voltage verify the 5 volt reference is present at the sensor.