Tring to diagnose my rev dropping off issue, i was just wondering what in the car changes when you reach operating temp?
My car is 100% fine until it reaches operating temp at which point it will randomly drop revs when i slow down/brake, and the idle will go up and down from 50 to about 1000 instead of being steady.
For what its worth, ive already cleaned the aac valve, but when i unplug it while the cars running it makes no change to the engine sound.
Also gave the afm a spray with contact cleaner.
Also using the stock bov.
So, what changes when an s2 r33 gtst reaches its operating temp?