I have a 2003 AT with Pop Charger only. Had for 5 years with no problems. Lately though the idle has been a little rough at stop. Underway it ran fine. Now it seems like it's missing. Today under normal power it seemed to lose all power for a half a second then come back. Then at the light the idle was rough and then it died. Never died in 5 years. Cranked right up but ran like it was missing. On the way home it ran OK but I noticed the tach didn't move from around 2600 rpm no matter what. I know you probably had a a thread on this already but I couldn't find it and I'm out of work and this is my only car. So I must get it fixed fast. Any help would be greatly appreciated. I'm in S. Florida (Fort Lauderdale) so If you know of a good, honest mechanic shoot me the number. Thanks again.

 

go see if there are any stored codes for anything, my guess is going to be camshaft sensors

 

Another idea that won't cost anything is to trace and recheck all ground connections.