i put in my det and i have a crazy idle issue when the car first starts it idles normal after about 1 minute it starts to idle high low from 2200 to 1500 when i unplug the tps the idle changes but when i unplug the iac nothing happens i replaced the iac still nothing please someone help its driving me crazy

Usdm and jdm engines have a diff iacv. Try using your oem iac if adjusting the det one does not work.

i tried swapping them still nothing

When you adjust the idle control screw does the idle change? If not then you have a leak some place. Pm me if you have more ?s

When you adjust the idle control screw does the idle change? If not then you have a leak some place. Pm me if you have more ?s


100% agree!!! I used to have this problem too, very severe and it was many leaks at intake manifold.

Now I have very few idle issues and I am using C1 cams (they should be worse), on my car, I just had to put IACV to it's min value to make it work better.

bro I have the same problem its the MAF connection... or MAF itself... what ECU do you have?

Did you start the car with water in the system. If so have you bled it properly.