Quote Originally Posted by lionelhutz View Post
There should be no need to guess or do manual calculations. Try editing the adx to get what you want. In the editor you find it under the Values. Basically, the TPS Volts and TPS % should be the same on the General tab except for the upper range and alarm (5 vs 100) but the formula on the Conversion tab would change to scale it differently. I believe the raw data goes from 0-255 for 0V to 5V. Once you open the adx editor and take a look it should be fairly clear how you can edit it.

Or, try the file from this site and see if it works to give you what you want,

http://www.gearhead-efi.com/Fuel-Inj...2&d=1375131735
There's one huge flaw with that idea, TPS voltage never goes to 0, even at idle, so any conversion done on the TPS voltage is going to be incorrect. Even adding an offset does not work properly. I tried for a good long time to get an accurate TPS % on a '7747, but never got it close enough to be useful.