Q: Replaced idle control and throttle sensor now won't idle and service engine light on

asked by on

Replaced idle control and throttle sensor now won't idle and service engine light on

My car has 86000 miles.
My car has an automatic transmission.

Hi there. Check to see if the idle control and throttle position sensor was for your vehicle. Some sensors are universal and can be used on many different vehicles. Check around the sensors to ensure that they are connected. Check to see if you have had to remove something to get the sensors off and see if those parts are reconnected properly.

If the sensors are working properly and nothing is disconnected, then check the spark plugs and plug wires for any corrosion and burned spots. If you need further assistance diagnosing your vehicle, then seek out a professional, such as one from YourMechanic, to inspect the idling problem and pinpoint the needed repair.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. Replaced idle control and throttle sensor now won't idle and service engine light on

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: Cruise control turns on at idle, but when the car reaches 10 mph the cruise turns off and won't turn back until idle again.

Hi there. Check all of the grounds to the vehicle and see if there is any wires that are damaged from the taillight short. A loose ground will cause multiple problems with the electrical system and some or multiple components...

Q: Window will only open, but not close

Hello there, thank you for asking about your 2003 Chrysler Intrepid. The power window motor is just a reversible DC motor, the direction of which is determined by the window switch. If the switch is OK, my guess is that...

Q: Vibration in the car - 2003 Dodge Neon

Hello. When issues get worse after a repair, always double check the work that was done. If you check that off right away, then you should look at why the engine is shaking so bad. This is typically due to...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...
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.