Skip the auto shop - Our mechanics make house calls

Q: My DPFE sensor burned up. What do you think caused this and will it do a new one the same way?

asked by on

The car was losing power and just sounding funny that is when I found the burned up sensor.

My car has an automatic transmission.

A: Hi and thanks for contacting YourMechanic. ...

Hi and thanks for contacting YourMechanic. The delta pressure feedback of EGR (DPFE) sensor was burned up for having too much back pressure on the engine.

A plugged catalytic converter or a plugged exhaust muffler will cause the engine to have excessive back pressure.

Also, a kink in the exhaust pipe will also cause excessive back pressure. As the pressure builds up, the engine exhaust temperature rises and will heat us the tubes that the DPFE registers and will cause it to melt. Put something on the end of the tail pipe and see if the engine exhaust will push it away.

If it does not push away or it is weak in force, then you may need the muffler or catalytic converter replaced. If you need further assistance diagnosing your exhaust system, then seek out a professional, such as one from YourMechanic, to help pinpoint the problem and guide you with repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: My car is taking off in second gear

Is the Check Engine Light on or could a fault code be stored in the computer? To see if there is a fault code stored in the computer without the presence of an illuminated Check Engine Light, the car will...

Q: Engine sputtering and "service traction system" control light coming on

The Powertrain Control Module needs to be scanned to see if there are any stored codes. A possible issue could be the mass air sensor, as this sets up initial injection timing. The air mass meter needs to be removed...

Q: Car won't start after alarm went off, 2001 Hyundai XG300

Hello there, this is a rare issue on the Hyundai XG300. The most likely causes would be a security control module, wiring fault, or a shorted wire. Any of these could cause the security system to engage while driving like...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.