I have a 1988 iroc-z 305 tpi manual 5-speed and under light acceleration not ever time but some times.it only does it at low rpm some times in 2'th gear to at low rpm . it will jerk, does not jurk as harsh when it does it in 2 but clean the ica . new plugs clean k@N have not put a cap or button on it yet or wires have not had it long. been cold and have had to move no time really . what do u all think ?

 

Hey diablo I am having the same issues. It started a about 6 months ago and seemed to only be a problem when I was running the A/C and would accelerate from a stop. If I did a very "light" pull away from a stop it would be fine. Now I am having it all the time when I am just doing city driving. I am suspecting the TPS, but haven't had a chance to really dig into it. The only reason I am suspecting it is just because of age and the TPS basically being used over a small "window" of its travel. If I find anything out I will definetly pass it along.

 

... it could also be a sticking EGR valve.

 

hey i just fix it to day it was my tps. i took it off and put a new one on and after adjusting it worked just fine i also clean my egr

 

add just a heads up if you try to take the egr of the car with out taking the throttle body off it is a pain in the @$$ !!! i think it takes a 1 1/4 but i found it easer to use channel lock. did scarch the pant off the egr a bit but that is ok by me

 

Here is a link to another post that I started in regards to my EGR valve replacement that goes right along with the hesitation problem. I am convinced now that my EGR may have had some impact to my overall gas mileage; however, my root problem with the hesitation was in fact my fuel pump:

https://www.thirdgen.org/forums/tech...r-now-car.html