im not 100% sure but i think u can reset the computer buy pullin the fuse out for say 30secs
re insert fuse (engcomp, underhood in the row of 4 or 5 at the front not in the biggger fuse box)
start car
rev up to 3000rpm for 8secs.
ive been told this resets any minor problems. Hopefully sumone will correct me here if im wrong
cheers