Alright I got an 94 GSR, few weeks ago car was getting hot as hell. So i bought 4 thermostats and none seem to be doing the trick. So I am running the car without a thermostat. Car was running cool for a while, then the other they when I'm going to work I have this werid idle, thats going up and down from 1000-2000. I figure this was normal cause i didnt let the car warm up, but now even if the car is warmed up it is still doing it.

any suggestions?

i am thinking the idle control unit might be out, but want to get some other feedback?

 

u might have air in ur coolant system...