I'm at loss here. Basically the car hesitates, shakes, and pops when first starting off in 1st, and then just has a really bad hesitation under 1500 rpms in all the other gears.

I changed EGR, TPS, MAT, Cap, Coil, Rotor, Plugs and Wires. Set the timing 6* and TPS .54. Not to mention, cleaning the Throttle Body and checking for vacuum leaks. I don't know what else to look for. Any help would be GREATLY appreciated. Thanx.

Jeremy

 

I had the same problem...just advance the timing to 8*. That cured my problem..did u put in a new fuel filter. if not that would cause it to do that.

 

well have an update, tried advancing the timing to 8*, the problem got worse, so I backed it off to 4*, same story got worse. I also tried some K&N's and the situation remains. Could an o2 sensor be causing my problem, considering it pops under the car? I haven't checked fuel pressure yet, don't have proper tools yet...

Jeremy

 

did u try the fuel filter yet???

 

Another update, I worked on it all day yesterday pulling sensors of my black 86 z ( that I know are good ), and putting them in my red 86 z, and I never got anywhere. Well, this morning my dad gets out there and pushes the TPS all the way down and she has never run better. I put in on a scanner and the TPS voltage is anywhere between 2.3 and 2.5 I know this is wrong, but I can't understand why it worked so well, the only problem now is that it idles too fast.

And no, I was going to do that this weekend, but we may have already sold it by then.

Jeremy

 

sweet deal man glad to hear your car is working good now. maybe just tweak the TPS to get it so it has a decent Idle and runs good...