weird low speed acceleration problem.
 

this is starting to really bug me. if i am driving slow, say stop and go traffic, between 1400-1700 rpms, my car will kind of buck when it hits 1500 rpms. this is only really noticeable in 1st and 2nd gear. could this be a problem with the throttle body or gas pedal sensor? could it be in the tune? it only happens sometimes.

another weird thing that happened today, and has happened a few times: i was in 2nd going slow, there was traffic, going at like 2000rpms. the traffic cleared and i got on it like 1/2 way, when the car got to about 4700rpms, it fell on its face like it had no fuel. this has happend a few times in similar situations, getting on it after going slow for a while. i had the fuel pump tsb done already, anyone got any ideas?

Don't drive slow...
The car doesn't like it...
j/k

Are your butterflies dirty?

definetly clean, i had the throttle body replaced once already, and i just cleaned this one recently when i cleaned the air filter. im thinking tune problem?

It very well might be the tune. You might try to reflash or contact who made your tunes