Just recently if I were to start my car and let it idle to warm up, it would start to smoke. But it only does it if i let it idle for awhile... if i just start it and drive away, everything seems fine! I'm not too sure what this could be coming from... I'm still running on stock exhaust (the cat is clogged, could that be the problem? ITs causing the check engine light to come on!!). I had some friends look at it, could it possibly be the turbo going to sh**? Bad seals, etc? Help before it gets worse!!! AH! All is appreciated!