Hi my Name is Daniel and I know What you problem is its your "mass air flow Sensor" search autozone its around 200. but well worth it. I had the same problem. whenever i started the car it would either rev like crazy or it would putt and die. then i would have to start it again. And every so often it would rev when i press the brake because what the mass air flow sensor does is reads the how much air is coming in the engine and if it thinks that your not getting enough it will rev the engine to make up for it missing the air. it has even died when i came to a stop because like i said it does think its not getting enough air and it will either rev the engine or kill the engine depending on how much air it needs. anyways if you have any questions please ask. Thank You Daniel.