I have an auto and it idles at a little bit above 500. Whenever i put it into drive it jerks forward. I talked to a shop and they said it might be because i have anintake that is in the fender. Is this true? If not anyone got any ideas on how to fix this?

 

My car idles about the same as yours and has before and after my tune.

 

Thats wierd, they said if i got a tune it would fix my problem.

 

Did you replace the t/b ? If so, did you reset the IAC volts to as close to 1 as possible without hitting one?