Skip the auto shop - Our mechanics make house calls

Q: Idling erratically.

asked by on

Idles up and down between 1500 and 2000 RPM. I was told it was the ECM.

There is a possibility that your ECM could be causing your idling issue. However in my experience control modules do not go bad very often. The problem could be as simple as a throttle body that needs to be cleaned or a vacuum leak somewhere on your engine. To either confirm or eliminate the ECM as a problem requires special diagnostic tools and knowledge of the electrical system of your vehicle. I would recommend you ask for help from one of the highly qualified mechanics at YourMechanic to diagnose what is causing your idling problem.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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. Idling erratically.

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: Where is the body control module located on my pickup?

The BCM is under the center console up near the front near dash. One of the seats need to be removed first, then you will need to remove center console. Once the console is removed you can then access the...

Q: Negative battery terminal sparks/smokes no power to car

Hi there. Check the condition of the starter wires when they were installed. See if the small remote wire on the starter solenoid is touching the main battery cable wire on the starter solenoid. If these two wires were to...

Q: What's wrong its not a head gasket

Hello. Usually oil that quickly drains into the cooling system is caused by a blown head gasket, or damaged cylinder heads. If you have verified that those things are not the source of your issue, then I would move on...

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...
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...