[prenoob]

Hey guys just made an account to get some help with this issue, so I had a low rough idle problem at cold starts and decided to clean my FITV, i dissembled it and then reassembled it and found lots of rust into the flow port for the valve, after it was cleaned i put it all back together and did NOT touch the iacv, now my car idles at 4,000 rpm also noticed my throttle gasket is in half but i bolted it on tightly i dont know why its so high pls help ;-;

 

[Blainethemono]

If idle is high I typically check the water level in the radiator. Low H20 can give false readings to the IACV, causing high idle or pulsing. Its also a great time to R&R all the temp sensors. They are cheap, and the OEM ones are OLD, OLD, OLD....

 

[prenoob]

If idle is high I typically check the water level in the radiator. Low H20 can give false readings to the IACV, causing high idle or pulsing. Its also a great time to R&R all the temp sensors. They are cheap, and the OEM ones are OLD, OLD, OLD....

Coolant is superb and up to level, I should replace the sensors that’s a good idea and today I used rtv gasket goop to reseal my fitv and its ring seals and i repaired a the cracked plastic bit that holds the valve in, i screwed it in all the way and loosened 540° as you apparently should and my throttle body gasket was cracked in half so i cleaned up both surfaced and will rtv that back on too, I’ll give an update if it’s still idling high if so I might just use a h22 throttle body and route the cooling hoses to the fitv back to the engine or something thanks for the response!