Q: i put an cold air intake on my 2014 bmw 328. now my my car some times idles really high and even cuts off.

asked by on

i put an cold air intake on my car. now my my car some times idles really high and even cuts off. i took out the MAF sensor to see if that was the problem and got it tested. The MAF sensor works fine and the car runs great with out it in. i want to put it back in to improve my gas millage tho. the only reason i didnt put it back to stock is because i broke off a small piece on the OEM air intake that i can find anywhere to replace.

My car has 60000 miles.
My car has an automatic transmission.

If you want to return the car to stock, you can obtain the broken part by using the used parts database at Car-part.com. If your desire is to see if you can get the cold air intake to work with your present MAF/vehicle configuration, check for vacuum leaks which might have been introduced in the installation. If there are no vacuum leaks, some modifications will probably be necessary because the higher air density is obviously causing the RPM excursion. A first step is to contact technical support at the vendor you used. You can also have this resolved by requesting an engine idle speed diagnostic - high idle and the responding certified mechanic will get this taken care of for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

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. i put an cold air intake on my 2014 bmw 328. now my my car some times idles really high and even cuts off.

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: Odometer reads just all dashes, main and trip the same. All other gauges seem to work.

Hi there. To be honest, both sources of information are correct. Usually when the odometer "blanks" like you've described it is caused by either an instrument cluster wiring or electrical problem or the ECU having a stored trouble or error...

Q: Shift from "D" to "Manual"

Hey there. It is not unsafe to switch from Drive to "Manual" while the vehicle is in motion. You should take precaution and perform this action at a lower speed. The engine speed will increase when shifting to a lower...

Q: SES light comes on and power drops when accelerating to 4000 RPM, after which it drives fine.

Since this is an intermittent problem it may be difficult to diagnose. The first thing I would recommend is to have a technician check your vehicle for trouble codes with an OBD2 scanner. If the check engine light comes on...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
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...