My car went crazy and I think that it's because the TPS is misadjusted.
I tried to adjust it by turning the TPS adjust screw in both direction, but my idle still was 4000 RPM.

I know you have to adjust it using the lights and stuff, but if I do that, will this adjust my TPS?
Should I bother trying it?
Do I have to disconnect the battery for a while?
Should I warm the car before doing it?
Thanks!

 

^^^

 

you can just make your own lights and adjust it that way, or you can use a multimeter and adjust it until it reads (I think) 1volt. I just made my own lights and did it that way. It only cost a few bux, and you can pick up all the parts from radio shack