Skip the auto shop - Our mechanics make house calls

Q: Epc Light & Sensor

asked by on

I replaced my EPC sensor aka mass air flow, my car will no longer run. If I unhook the sensor the car will start eventually and idle however with the sensor on it will not start or run. I recently replaced my water pump but it would run after that but my epc light kicked in a few short weeks later after the pump was replaced, I'm not sure what would cause this but I would appreciate the help !

My car has 139145 miles.
My car has an automatic transmission.

A: I’m curious if there are any fault codes st...

I’m curious if there are any fault codes stored in the engine’s computer. The mass air-flow meter or sensor is not the "EPC" sensor. If the vehicle is not running properly with the new mass air meter, there may be an issue with the vehicles electrical connector. Consider having one of our mobile experts take a look at the vehicle and check the electronics for any red flags.

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

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: EPC Check Light is on followed by an engine fault

The EPC light refers to the Engine Power Control indicating a potential engine malfunction which is a general warning that could mean many different things such as the engine speed sensor, mass airflow sensor, or other issues related to throttle...

Q: No throttle responce but car runs good why

As you may know, the EPC light stands for "Electronic Power Control" which is a general fault indicator signaling that something has been detected that is abnormal relating to the traction control, the throttle control, the cruise control or the...

Q: Transmission temperature indicator light randomly comes on and off but transmission is fine.

Hey there, thanks for writing in about your 2005 Dodge Dakota. You may have a defective transmission temperature sensor in the transmission pan that needs to be replaced. This is a common problem that can trigger the transmission temperature indicator...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.