Q: Idle is running high when driven. I put it in neutral and it idles at 2300 rpms. Just had a cold air intake put in and throttle cleaned

asked by on November 10, 2016

Throttle is 2300 rpm when in neutral while driven. It seems to be running higher than normal put a cold air intake on it and the throttle body was cleaned

Throttle Controller Replacement $226.78 - $1710.92 Get a Quote
Engine idle speed is high Inspection $79.99 - $89.99 Get a Quote

Hi there. Assuming your vehicle has ETC (electronic throttle control), "drive-by-wire" problems can develop when cleaning is performed. Manually opening the throttle plate may have affected the close position. An idle relearn performed with a capable scanner may resolve the issue. If the Check Engine Light is on, this may help direct the diagnosis. A vacuum leak may also create a higher than expected idle. I recommend having the vehicle’s high idle diagnosed and repaired by a certified technician, such as one from YourMechanic.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

What others are asking

Was in a rear-end collision that affected my brakes. Mechanic says master cylinder is the issue. Could this be do to the wreck

To determine if crash forces led to master cylinder failure you would have to determine exactly "what" failed within the master cylinder. If the master cylinder bore is scored or worn, for example, thus causing significant output pressure loss, that...

Gear independently shifted into neutral - 2005 Chevrolet Suburban

This sounds like it could be a transmission control issue. Faults codes should be read out and any issues corrected. Generally, if there is a mechanical condition in a transmission the symptoms will be static and always present where an...

I have what i think is a radiator leak, I have a 2 1/2 hr drive home, can I make it?

You may want to have the leak checked and all the fluid levels checked and topped off before attempting to drive the vehicle at all. A long drive may run whatever is leaking out of the fluid and cause more...

Is engine permanently - VW GTI oil screen fell out and intake camshaft,bridge and timing chain and tensioner had to be replaced.

Failure of the screen in the cam bridge that you are referring to is not uncommon. Indeed, the OEM bridge was updated and presumably that (the update) was installed in your vehicle. So long as all oil passages were clear...

My stability trak

When the computer has a failure in some of the systems like transmission or engine it can cause the computer to go into failure mode and lose or limit power and you will need to have computer systems tested to...

Car chugs when warms up at accerleration

Hi there: Usually the symptoms you're describing are more related to a vacuum leak, worn out spark plugs, bad spark plug wires or issue with the ignition system. It's also possible that dirty air and fuel filters, mass air flow...

Replaced dead battery and now nothing but dash lites

Hi Charles. Typically the ECU doesn't take three days or any extended period of time to reset after replacing a battery. It is quite possible that an error code is stuck in the ECU causing the dash issues. To remove...

Sputtering issue with car

Code P0301 stands for cylinder #1 misfire. There are numerous potential causes for this code and your symptoms. If that is the only code stored, you'll want to focus on items specific to the #1 cylinder, such as the fuel...

Reset AdBlue light on a mercedes GL

Hi There, Normally, this message will go away on its own after driving the vehicle for 5-10 miles. When you fill the tank, be sure to fill it to the top and it should relearn the new level of fluid...

Related articles

The Importance of Warming Your Car Before Driving
Scandphoto / Shutterstock.com Many people feel that it’s important to warm a vehicle up before driving off. This has long been the dominant school of thought, dating from when cars had carburetors and many would not run...
A Buyer’s Guide to the 2012 Chevrolet Colorado
The The 2012 Chevrolet Colorado is the perfect size pickup for running errands on the weekend and doing light duty chores around the yard. For those who don’t need a full size pickup, the Colorado offers almost everything a full...
The Importance of Warming Your Car Before Driving
Scandphoto / Shutterstock.com Many people feel that it’s important to warm a vehicle up before driving off. This has long been the dominant school of thought, dating from when cars had carburetors and many would not run...