Quote:
Originally Posted by Khmerboost
When you start the engine on cold without A/C should be 1.2k-1.35K rpm n then it will drop to 800 rpm when is normal idle. If ya car still run 600rpm. Without rough idle is okay. Just need to adjust the idle to 800rpm without a/c on.
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You can't adjust the idle speed on a 2012 STi, it's drive by wire throttle and controlled by the ECM. The only way is a flash tune.
600rpm is a little low, check the hose is installed properly. Then maybe get it checked by a dealer or your preferred workshop.
Why did you install it yourself? The car must be still in new car warranty, or very close.
Edit: just read your sig, maybe too far modded for warranty, either way, get it double checked