start here and go forward
http://www.cygnusx1.net/Supra/Librar...ction=FI&P=100
thats the supra repair manual which is the identical engine for non turbo. this procedure is how to properly adjust the TPS and yes you should remove the TB to do this. i thought i could do it on the car once, that was a big mistake. made my car run like crap. all you need for this is a set of feeler gauges and a multimeter.
also, if you don't have another TB gasket put a bit of blue RTV silicone on there. good luck.
also make sure both sides of that TB are clean.
