Thermostat REACTION!
 

Hello, i recently installed a thermostat in my 88 Supra N/A. Buuuut after i did, i noticed that after the car got heated to where its supposed to be, it starts reving repeatedly. Annoying. So i was wondering if anyone knew what can be the problem because the car does NOT heat up but it revs constantly when its parked, and its not a 5 minute thing. It can maybe do that all day. It didnt do that before but I neeed a thermostat!

Sounds like you may have a vacuum leak. Did you make sure that the 2 vacuum lines on the thermostat housing were reconnected?

Yes, everything was connected well again. I just checked too, after I read your forum and every pipe is connected so I don't know what it can be