K&N Airfilter

[STANKINLANCOLN]

I installed a Cone K&n airfilter in my car this weekend and my check engine light flashed on this morning. I also notice it idles lower and it has a little shake when setting in park. Is this becasue of the airfliter??

 

[Quik LS]

sounds like either:
- air is getting into the intake passed the MAF sensor somewhere
- you don't have the MAF connected tightly