My car loses power when driving?

2005 VOLKSWAGEN GOLF
90,000 MILES
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My car loses power when driving it happen sometimes,secondly its shows epc light on the dash boad,that light comes and goes,I have serviced the car two months ago,just wannd know how much it can cost me to get it fixed?
Jan 25, 2013 at 10:08 AM
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SQM
  • ✓ASE Certified Mechanic
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Hello,

One of the most common reasons for an engine to go to low power or limp mode is a dirty throttle actuator.
When dirt and debris build up inside the actuator, it is unable to send proper signal to the ECM. That usually triggers the lower power mode.
Many times, restarting the vehicle resets it.
A good first step would be to inspect the throttle actuator and clean it. That can restore the drivability issue.

https://www.2carpros.com/articles/reduced-power-limp-mode

The EPC light comes on where there is an issue with the vehicle power.

Here is a helpful guide on how to clean the throttle bore:

https://www.2carpros.com/articles/throttle-actuator-service

Please let me know if you have any questions.
Thank you.
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Jan 6, 2022 at 4:28 PM
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