I attempted to adjust my RS's TPS today. Stock LO3. Luckily, I found I had .43v. at idle position, smoothly running up to 4.8v.at WOT position. I didn't have to move anything. I am confused though. Everything I've read on here says it's adjustable but nothing seems to be able to move. You can only remove it from the throttle body. The attachment screws are not through slots at all. Are the adjustments not possible or nexessary on a 92 LO3?

 

Nope, no adjustment on TBI's. The ECM self "zero's".

 

I dont know about your particular application but I had to elongate the holes in my TPS to allow it to rotate.