Diesel Fuel Pressure Sensor Testing

Connect picoscope channel a to the signal circuit.

Diesel fuel pressure sensor testing.

Testing the fuel pressure. Start the scope to see live data. To check the ground wire check for voltage by back probing the connector with it connected. Ensure the engine is stopped.

Install the pressure tester to the test port when the engine is cold. 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. It should be about 0 5 volts. If the fuel rail pressure sensor does not output the correct voltage verify the 5 volt reference is present at the sensor.

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. 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. 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.

Although the pressure sensor is often the cause of a p0452 or p0453 there are other possible causes. You will see that picoscope has displayed an example waveform and is preset to capture your waveform. Minimize the help page.