Car doesnt accelerate like it should....When I hit the gas hard it feels like it has trouble responding....Probably something to do with the speed sensor right? That lil green light that blinks...or is there a different light for transmission....Any ideas?

 

if there is tranny trouble the D4 light should blink......

 

check the fluids and hope you didnt do it dirty. or doin burnouts on the tranny.

 

Is the tranny slipping? Feel any jerky shifts? Overrevving? If you're 2000+ you have a tranny warranty till 7yrs/100k miles.