that's really weird...mine's doing the same thing. we just changed the spark plugs and wires and sprayed GM top end engine cleaner thru it. a couple weeks after that and it will stall when i'm at a complete stop, usually when i'm in gear w/ my foot on clutch and brake. it'll start right up again...so i guess i'll have to check my sensors too. good luck w/ yours! btw....my car has almost 92k on it