Stutter low and high

[turbotyphoon69]

hey guys, i dont know if this is two seprerate probs or what. and im thinking one might be from the tranny so i didnt know where to post.

any ways at low rpms or when i floor it off the line, the ty stutters or hesitates for a second then goes which has been around for a while.
but at high rpms i have it to the floor and it pulls strong then let go, pulls and lets go, while the rpm jumps RAPIDLY from 3,900-4,300rpm. sad part is im goin to the track for the first time this week end and im gonna go with this prob :x and it seem to be gettin slower day by day

 

[TYRODD]

Does it do this in park or neutral? Hows your 1-2 shift?

 

[turbotyphoon69]

nope only while going, and i forgot to add that it came after i put in an acufab afpr if that makes any difference :roll:

 

[TYRODD]

Check vac line to afpr and MAP sensor, your prob sounds a little similar to what mine was doing, except for the back and forth stuff, what about your 1-2 shift-could tell you if its tranny or not, well its usually a good indicator. Also check plugs and wires, if they are a little weak the problem might dissappear when the coil sends more juice through them, this might be why your "mid" RPMs seem OK.

 

[Jimmy]

Tach flutter=ignition,Replace cap and rotor,plugs,plug wires,make sure the timing is set @ 0 with tan wire disconnected.