finially got the 86z28 started, was runing ok, then i adjusted the TPS to .52 volts now its idles at 2k and wont back down, also when i was adjusting the timing i didnt see any advance even with the ALDL not jumped...the set timing connector was still connected also..well i did see about 2deg of advance but thats not what i can remember from 2yrs ago when i timed it...idk wtf is goin on heh..got 600$ sunk in tring to fix one prob now this?

 

I'd check the linkage, base idle screw and the IAC.

 

Watajob is correct, you need to check the base setting. If you set the tps and the idle changed, it may not be set at 0.52 when competely close when set, recheck it. Look at the tps reading on a scan tool. If it is used, you can not reset the voltage on a worn out TPS, replace it!

also, what does the IAC show on the scan tool. If 0 it is completely closed.

Check for vacuum leaks.

The IAC my have carbon holding it open.

Pull codes, Jumper the aldl (a to b), count the flashes

 

Yea i replaced the IAC the old one had massive carbon. That still didnt change any thing goin to replace the TPS even tho the voltage reads correct. I also put in slightly bigger injectors...would that effect the idle tho? I also pulled a vacuum line from the TB that runs to the canister and the idle drop to 500 Rpm..hmm. I havent checked the fuel pressure either after installing a new regulator but that shouldnt effect idle or...

 

There are also no codes stored. Ran the car for about 100 miles since i got everything put back together. No probs the car flys just the lol idle...