So with every CAI I buy and install on my 07 SS/SC I kick out a run rich/lean code. First with an Injen CAI and then with the ZZP 3" intake. Any idea why this is? And I've even had my pcm tuned to recognize an aftermarket intake....It would go away for a while then come back. If I reinstall the stocker the code goes away. Why is this such a bitch and how can I fix it without going back to stock?

help anyone?

 

Screwed MAF sensor?

 

maybe but like I said it works fine with the stocker.