i am getting HUGE hesitation when ever i move the peddle more that 1/4" at a time, to the point of it almost dying if i kinda punch it.  what i have tried:

change out and adjusted tp sensor - no help
changed out idle speed control sensor - no help
put in new fuel filter - helped about 50%
wax pellet put back in - no help high idle
   took back out and pluged - better idle still hesitates
changed out injector - no help
checked timeing - right on +20*
checked plugs and cleaned - no help
wires plugs cap rotar coil and vlines all new.

HELP!!!  this sucks.

could it be a loose timing belt, bad fuel presure reg, fuel pump?  since changeing the fuel filter helped it must be something having to do with the fuel? :-/

thanks all!

Im not a EFI expert but I would check fuel pressure. I dont know exactly what it is supposed to be but someone out here will
good luck with it
jason

Yep, sounds like the pump is having a hard time keeping up with the go-pedal.

I would check fuel pressure

i am looking up how to do that right now.  anyone have experence checking fuel presure or changing out the pump?

This might help: http://www.autozone.com/servlet/UiBroker?ForwardPage=/az/cds/en_us/0900823d/80/1f/7d/a4/0900823d801f7da4.jsp

36 PSI for an 8V TBI engine,
should be close to that to 43
PSI depending on the EFI system

cool, but, (always a but) where and how much is the guage ganna cost me,  i just looked up pumps at autozone    very pricy.  was thinking about just taking out the pump and cleaning it first, what ya think?  maybe the inlet is pluged....

check your temp sensor and make sure your engine warms up all the way.(gauge comes off of the cold side.)

cool, but, (always a but) where and how much is the guage ganna cost me,  i just looked up pumps at autozone    very pricy.  was thinking about just taking out the pump and cleaning it first, what ya think?  maybe the inlet is pluged....

I'd get a garage to check the fuel pressure, it shouldn't cost much.

if changing your filter helped than you might want to remove the pump assembly and check that the strainer on the bottom of the pump is not plugged with crap - you could have got some bad gas maybe?