its a 89 re, and im pretty sure its running way too rich. why isnt the 02 picking that up and adjusting-- does anyone know about the throttle position sensor adjustment- - my buddy says thats one way to lean it out, but why isnt the check engine light on or something- and it runs wierd, sometimes it has plenty of power and other times it runs like junk and has no power - - the check engine light comes on when its should when i turn the key on and goes off when i start the truck- - so its working okay- -i think