Q: Car racing and idling high

asked by on

The car is racing, and the low idle is too high. The RPMs do not go all the way back down when I lift my foot off the gas pedal. I personally replaced half of the O2 sensors, but the front right is rusted in. But I doubt that is the problem. Also, the dash light indicates the trunk is open most of the time. It seems as if there is a bad sensor.

Hi, these cars have developed many idle issues over the years and there are a few things to check. All the linkages for the throttle should be inspected to make sure that when you release the pedal, the return spring closes the throttle all the way. You should also have the engine inspected for any vacuum leaks. Our certified technicians here at YourMechanic would be able to inspect your engine and help diagnose the trunk sensor.

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. Car racing and idling high

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: Battery dead, dash lighs on, chugging noise, RPMs fluctuating

Considering that your vehicle was dead, required a jumpstart, and had multiple unrelated lights coming on I would say you may have an alternator issue. Alternators are responsible for keeping all of the electronics in your vehicle powered up while...

Q: 2002 Honda Civic wants to shut off when stopped

For something like that, start with my video "how to fix the car that idles poorly." Try everything in that video. Take off the clam into the intake and the engine, spray throttle cleaner, clean the throttle up, and check...

Q: TRUNK FUSE BOX

The trunk has two fuse panels one on left rear and one on right rear of trunk area. The one on the right has the fuel pump relay and fuse. The trunk door lock is in series with all the...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.