My car cuts off at 4000 rpm under hard acceleration and smokes black at tips and has a rough idle. It blows out fuses to the air pump. When I put a new fuse on and run it for a little bit, it seems to run fine til after a while it starts sputtering. When I park it blows the fuse out. WHat could cause this?

 

This should help:
http://web.camaross.com/forums/showt...ir+pump+recall

 

The AIR pump only runs for a few minutes on a cold engine, then shuts off. Not sure why/how it would be affecting your drivability problems.

 

so why would it be blowing out the fuses?

 

Did you look at the explanation in the link posted in the first reply?