air regulator high idle

[Stunt'nSlide]

I have a 2,000 rpm idle on my 89 ka24e. I've done just about everything people said too do. One thing that confuses me is people said to squeeze the hose that goes to the air regulator when the car is warmed up and see if the idle drops to normal. I did that and my car died immediately. does that mean the air regulator is bad or is that normal. And when i disconnect the plug on the air regulator nothing happens.

oh yea car only idles high when it's warmed up.


here is everything i've done:

checked for vacuum leaks - none
cleaned iacv
replaced coolant temp sensor
set tps too .45 volts
unplugged the iacv and the car idled normal
unplugged air regulator and it stayed the same
pinched hose too air regulator and car died instantly
adjusted idle screw with tps unplugged - it's in all way and it dropped the idle too 1,800 rpms
and reset ecu
throwing code 41 for air temp sensor but everyone says that's fine it won't affect idle