Well I threw my first cel tonight. I have had an injen intake for about 2 months and no cel. I just got an exhaust installed tueday and put a breather on today. Does anyone have an idea of what cel I threw? Could a breather throw a cel. The only reason I started the thread was b/c I cant use a scan tool since it's late and tommarow is easter so most place should be closed.

 

could literally be ANYTHING.

Get the code read as soon as you can.

 

Yes I second Zinners post as there is no use guessing till you read the code!

I didn't understand your post totally as you already had the Injen CAI on for a couple months.
Then Tuesday you had Exhaust installed.
Then you state you installed a breather ?? this is where you lost me as I read you already had a CAI on the car.