There is a difference between the two TPS'. If you have a 90 then you'll need one from an 89-91 car.

S5s have a dual TPS sutup, where as S4s have a POS single TPS that reads 100% throttle when you have the gas pushed down 1/3 of the way. https://www.nopistons.com/forums/pub...1047683358.gif

I had this problem too, the easy way to fix it is to get an autometer and clamp it onto the wire comming out of the tps and play with the screw unitll it is set to 1 volt at idle, that is where it is supposed to be programmed to. Hope this helps

with a haltech you just go to calibrate throttle and follow the instructions on the screen, you can confirm the proper adjustment by watching the engine data page, observing the throttle position %age while you go from idle to WOT with yer foot...



We don't need no stinkin LED's https://www.nopistons.com/forums/pub...DIR#>/wink.png

Woops, sorry about the pics being gone for a while. https://www.nopistons.com/forums/pub...IR#>/smile.png

https://www.nopistons.com/isamu/albu...9efb321237.jpg]

https://www.nopistons.com/isamu/albu...001d5cc899.jpg

https://www.nopistons.com/isamu/albu...7a5b9bfef2.jpg

i love you guys

i vouch for it it works

It works a Treat!



Mine was out by 3 turns...:(

If you haven't done it, do it!

wheres the screw at?! damn im confused.

Right there in front of the TB..(Center-Right)(On the left side of those 2 red hoses. That screw.



https://www.nopistons.com/forums/upl...1065224052.jpg

I've always heard the checker light method wasn't accurate.