IACV not perfoming, but performing

[osakarory]

S1 RB25 in a R32

Low(er) idle with the A/C on and no increase in rpm when turning the steering wheel.  Opposite of normal, right?  

I had the engine cleaned out with a popular product here in Japan called Wakos RECS (Link) the other day and I didn't notice any change in idle conditions on the drive home.  I then promptly took out and cleaned the IACV to hopefully rectify a different idle problem. I removed and cleaned the cold start air regulator as well. Only, after putting it all back together did I notice the aforementioned A/C and power steering idle problem.  I cleaned the MAF today and reset the ECU and that didn't help.  No ECU codes are shown.  Stock ECU by the way. 

It idles around 1000 and with A/C it dips down to maybe 550 and then up to 650ish.  Fiddling with the screw on the IACV doesn't seem to change the idle rpm very much.  

Any ideas would be greatly appreciated! 

Thanks, Rory

 

[Duncan]

Did you definitely plug it back in properly? If not connected you would get the results you are seeing (ie as it doesn't open, the engine will idle lower due to the load)

[osakarory]

Definitely plugged it back in properly. I just went out to readjust the idle properly (didn't disconnect the iacv before while doing it), but that didn't fix the problem. 

Idles at 900, A/C goes to 600 and then not so slowly up to almost 800.  It IS working, just not properly. 

[osakarory]

Its been a while with no changes being made on my part.  Anyone have any new ideas?  When I removed the iacv the gasket bent/ripped a little bit.  Think a small leak there would cause this problem? I ordered a new one, but still seems like it wouldn't cause this.