I drove the car the other day and it runs fine at low rpm but once i start to get the car past 4500 rpms it starts to sputter pretty bad. any suggestions?

 

define 'sputter' and is it doing this when you're driving or reving in a driveway or what?

 

mine does this... it goes away after a bit of hard drivig, but periodically returns. I have a spare TPS in my garage, i will let you know if the swap cures it. PM me incase I forget to post here.

 

its hard to define a sputtering when your trying to write it but ill do my best. It feels like a break up in power at that rpm. You hear the idle break up if that helps. I noticed it first when i drove it and then when i got to my destination i did it while it was just on and it did it a little not as bad as when i was driving.

 

ok last question, shoulda asked this a minute ago, but what year/model is it?

 

the car is an 88 10th AE the one in the sig.

 

damn, sorry dude i dont know too much about the turbo II's... im an n/a guy myself... but damn that is one beautiful car... sorry im not much help tho

 

It's probably something similar to the 3800RPM hesitation. It's either a ground, TPS, or something wrong with your secondary injectors.

 

i was had the tps and secondary injectors in mind but never thought about the ground.

 

Bad grounding can keep the secondary injectors from coming online or make them stutter, it's a good thing to check out.

 

how many ground wires are there and were are they located? because thats what it feels like its doing when i get on it a little at about 4000 + rpms it starts to stutter like if there was something wrong with the secondaries

 

how many ground wires are there and were are they located? because thats what it feels like its doing when i get on it a little at about 4000 + rpms it starts to stutter like if there was something wrong with the secondaries

 

Does it sound like the ignition is breaking up?

Friend on mine had a similiar problem, but started at 5k and above.

We traced his problem down to a cracked coil tower and bad plug wires. Car ran perfect at lower rpms.

Easiest way to check for it is in the dark. Voltage leaks are rather pretty at night.

 

you mean rev the car up past 5k and watch the coils