What does the EGR pressure sensor do?
EGR Position / Pressure Sensors The EGR Position sensor detects the movement and position of the EGR valve pintle. The EGR Pressure sensor detects exhaust gas flow through the EGR passage.
How do I know if my DPFE sensor is bad?
Common signs include engine performance issues like rough idle and decrease in power, failing an emissions test, and the Check Engine Light coming on.
What is DPFE?
o DPFE (Differential Pressure Feedback Electronic) Sensors are an integral part of the EGR (Exhaust Gas Recirculation) System. The DPFE Sensor provides information to the Powertrain Control Module (PCM) to tell it how much exhaust gas is flowing through the system.
Where is EGR sensor located?
Mechanical EGR valve position sensors are mounted on the top of the EGR valve. EGR pressure sensors will be located close to the EGR valve as the exhaust gas hose must be connected to the sensor as well as the valve.
What happens when a DPFE sensor goes bad?
When the DPFE sensor fails, the engine can’t run as it was designed. With a faulty sensor, the wrong information is sent back to the engine’s computer. Because of this bad data, the EGR system malfunctions. With this system not running properly, you will notice reduced power and a rough idle.
Can you drive without a DPFE sensor?
You shouldn’t drive with a faulty DPFE sensor. If you are noticing a rough idle or a lack of engine power, it’s best to replace the DPFE sensor and EGR valve. Leaving the car with a faulty EGR system only causes trouble passing emissions tests and leads to further air pollution.
How do you clean an EGR valve?
How to Clean EGR Valve?
- Spray cleaner in both openings of the EGR valve.
- If it’s really dirty, you may need to use a pick to scrape off the bigger chunks of carbon or a wire brush.
- You may also need to let the cleaner sit in the valve for several hours.
- Don’t be afraid to use too much cleaner.