well ... weirdly the car came back 2 life. (the turbo motor) I turned the bac screw all the way out and then turned the idle screw in the back of the motor up hella. The car idled and I almost died. It was a 2500 rpm idle but it was an idle. I slowly dropped the idle screw down little by little, till now I have a 1000 rpm idle.



Its weird though, I hit the gas, and it revs up after a little bit of hesitation, but when the rpms drop back down, it goes to 500, then bounces up to 1000 and back down to 500 a couple times, backfires, and then goes back to holding idle at 1000. Any ideas? The tps is hard to set seeing how every time I change the idle, the warm setting of the TSP changes. Its super sensitive to keeping it at 1k ohm.



Also I cant figure out what the screw that is by the pot does. It also changes the tps, but I dont know why or what its connected to.



i have the bac screw back in, about half way with no change. I still cant figure out what the bac screw has to do with the idle. *shrugs*

 

bac screw is the idle speed adjustment. if you're using anything else to set the idle speed something else is wrong.



i'd suggest getting a sub 1000rpm idle, and then recheck the timing, and start looking for vacuum leaks, and other things.

 

playing with the bac screw does nothing for me. Maybe thats my issue? Why wouldnt it? Does it raise the idle when unscrewing it or screwing it in?