Q: Accelerator doesn't respond

asked by on

About a week ago I got stuck in traffic cus my accelerator was not responding, I got a mechanic to check it and it was fine. Next day the same problem, the mechanic serviced the throttle and it was fine. 2 days later it happened again(check engine light on all this while), he changed the throttle and it happened again, we have changed 3 control boards and it seems to be fine only to have the same problem after a few hours? Can anyone help? The error codes read are in relation to the throttle, but the same problem is surfacing with the check engine light on

My car has 52000 miles.
My car has an automatic transmission.

Hi there, Your car’s throttle control system is comprised of a few different components that all work together to control the throttle as you press on the gas pedal. The foot pedal position sensor relays the position of your foot on the pedal to the car’s ECM which then transmits this in the way of a signal to the throttle control actuator. When the gas pedal is depressed, the electrical resistance of the potentiometers inside the pedal sensors change. The control module notes the change in position and assumes the driver wants to go faster. The module then looks at other sensor inputs (such as engine RPM, engine load via the MAP sensor, possibly even vehicle speed and which gear the transmission is in) and calculates how much throttle opening is needed. The module then sends a command to the electric motor on the throttle body to open the throttle a certain amount. In your case it sounds like you may have already changed the control module. I would recommend having a professional from YourMechanic come to your location to take a look at your car to properly diagnose what may be causing your throttle to fail.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Accelerator doesn't respond

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: Throttle position sensor needs resetting

The ESP system may have a bad ground on the left hand shock tower causing the problem to happen intermittently. I recommend seeking a certified mechanic, such as one from YourMechanic, to come and test your vehicle for you and...

Q: Permanent fix to steering wheel lock issue

Hello. You can indeed disable the steering lock system by removing the fuse, however you would need to get the vehicle started before doing so. The steering wheel lock system uses an actuator that moves back and forth to lock...

Q: Door handle needs repair

As this issue is understandably frustrating, I would recommend scheduling an appointment with a professional to have the door handle inspected and replaced, if necessary. Having all door handles in working order promotes occupant safety, so it's a good idea...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...