91-94 throttle body on a 90?

[vintagemuscle]

i was wondering if i could put a 91-94 tb on my 90. i know that the isc is different but i believe the plug on them are the same. is the plug on the tps the same? if anyone has done this please let me know. the reason i want to do this is because 90 tb's are hard to find and i can get a 91-94 tb with all sensors for a good price. i have a really bad stalling problem when letting off the gas and i suspected the isc but i have tried two used ones and have tested them with a 6 volt battery and they both will just twitch and i am not sure if they are any good. at idle on my datalogger the tps reads 10%, is this normal or should it be 0%? could just an isc be causing my low vacuum readings 14in. at idle?

 

[wt71gas]

I am not totally sure what the exact differences are but if you need a replacement throttle body message me because I have two different AWD GSX's both 1990. I have a throttle body I can sell you if you end up needing it.