Hi all, I've searched for my problem and couldn't find exactly what I needed though it's probably similar to others problems. I just had my intake swapped because my old one was cracked. Went to pick up the car at the mechanic shop, started the car and it was running rough at idle. Revving the engine it also was rough. Not crazy rough, but just enough to shake the steering wheel a little and vibrate the car slightly. Driving the car, it was rough all the way through the rpms. Did this cold and once it warmed up. If I let off the gas to cruise or came to a stop at a light, the rpms would drop really low (below 500 rpm) and the car would die. It starts just fine, but dies whenever not on the gas while in gear. Park and neutral its just rough but won't die. Dies in reverse or drive, doesn't matter. Unfortuantely I left the car at the mechanics, so I'll call him tommorow to see what he can find. Any ideas what it could be, so I can tell him things to check. Any help is much appreciated. Thanks everyone.