Quote Originally Posted by fatride99 View Post
No codes. Put a new denso front O2 in last fall when we put my tog's on. Plugs were installed last may at intense, after i got the GTP. When it does this, it goes for like 30 seconds or so, then straightens up. No issues after that, unless it sits overnight, then it does it again, then is ok. Sometimes, it starts right up w/ no issues at all. Hope that helps.

Jason
Try unplugging the MAF before you start it some morning when it is cold and see if it still does it.