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Gas pedal stops working while driving?

Tiny
ROBOROB44
  • MEMBER
  • 2016 MITSUBISHI MIRAGE
  • 4 CYL
  • 2WD
  • MANUAL
  • 80,000 MILES
This usually happens after driving the car for 20-30 minutes when it is hot. The accelerator pedal stops working and will not accelerate the car forward, unless you pump the gas pedal. If you push down on the gas pedal, it will accelerate momentarily, then stop accelerating, no matter how far down you push the gas pedal. To drive it you have to continuously push down on the gas pedal and basically pump it over and over. This does not happen in reverse. I already replaced the fuel pump, fuel filter and fuel regulator. Please help
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Saturday, September 16th, 2023 AT 9:23 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
So, it sounds like the car is going into limp mode which can be attributed to the throttle body or the accelerator sensor, to see what's going on let's run the codes.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

And this guide can help as well:

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

Here is how to replace the throttle body and accelerator pedal in case a code comes up for it. Check out the images (below). Please let us know how it goes.

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Monday, September 18th, 2023 AT 12:04 PM

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