I recently installed an aftermarket filter kit. It worked great. Then I bought a 90mm single blade throttle body. Except for the TPS everything went fine. I do not know how to install the TPS. Is there a special way? I have not gotten around to looking for a manual in a store yet. The truck now shifts very hard and the supercharger will not spool up correctly. I did get a new TPS to install if someone can tell me what is going wrong. One more thing, the service engine soon light is now on.

Vehicle
2003 lightning

 

First, welcome aboard!!

Not sure on the install but here is a link on setting it and some info.

https://www.f150online.com/forums/sh...TPS+adjustment


-0light1