Check engine light
Thread Starter
4th Gear
Joined: Sep 2007
Posts: 4
Likes: 0
Check engine light
Just installed AFE cold air intake. Used non-oiled filter, MAFS installed correctly and breather/vent hose connected. Everything is tight but now have a check engine light. Any suggestions would be appreciated. 2018 Z06
Melting Slicks
Joined: Aug 2016
Posts: 2,762
Likes: 1,017
From: MOUNTAIN HOME Arkansas
You need to know the code that thru the CEL. If you don't have a code reader, take the car to parts store like Auto Zone, O'Reily's , Pep Boys, etc. They will normally read & clear the code if you want to clear it once you know what the code pertains to. I have seen some folks post that OnStar can also tell you the code but I don't know this for sure. Of course under warranty you can take to dealer but they will not be happy that you have modded the air intake system & will probably at the least charge you to diagnose the code. If by some very strange chance your very minor mods cause a problem that is serious (can't imagine that) they could deny warranty repair if needed. You could remove the mod, have the code cleared, then reinstall to check if problem recurs. Possibly the car will have to go thru a certain # of "drive cycles" (too much to go into detail here) to allow the ECU (computer) to relearn the new parameters of the change in air/fuel mix & could clear itself. I suggest just drive it 3-4 times & see if code clears (if car is running ok).
Last edited by madrob2020; Aug 31, 2017 at 10:44 PM.
Burning Brakes
Joined: Jul 2008
Posts: 1,236
Likes: 270
From: Rattlesnake, FL
Enjoy the new car
Drifting
Joined: Oct 2003
Posts: 1,639
Likes: 376
From: Millstadt Illinois
Did you disconnect your battery first? If not start the car and open and close the hood. Should correct it. If not it should clear after 2 or 3 starts.
Not a new problem if the battery wasn't disconnected.
Not a new problem if the battery wasn't disconnected.
