Replacing Idle Control Valve on SAAB c900

I've mentioned in posts about Greeny I've been chasing some annoying idle issues lately. I've replaced all of the vacuum hoses, replaced the rubber o-rings on the intake manifold fittings, but I still have the occasional stall and inconsistent idle. Sometimes it's perfect and sometimes there's some 'wandering.' A bit maddening.

I again cleaned the old Idle Control Valve (ICV), and was still having some problems. I'm reasonably sure the old valve was responsible for my semi-erratic idling and stalling issues. It occurred to me that in addition to sticking - sometimes resulting in  idling at 1500 rpm - I wondered if the internal valve bore was just worn and was leaking air.  So I finally caved and bought a new one.

Above you can see the location of the ICV. This is the old one. It's probably the original.

Side note: I originally bought a Pro Parts Sweden ICV and put that in. It didn't work right. My idle was high all the time. Aside from being quite surprised, I also had the hassle of returning it. I got a Bosch (OEM) one. My advice if you need one, get the Bosch.

It's quite easy to remove/replace this thing.

Undo the 10mm clamp bolt. Mine's been out so many times I was able to undo all the fittings with nut drivers.

Loosen one of the hose clamps. The one I'm working on in the picture takes a 7mm socket.

Undo the other hose clamp. This bottom hose has an 8mm fitting.

Remove the electrical connector from the top of the valve.

Pull the hoses off, and slide the ICV out of the bracket.

Note the nice rubber gasket to hold it in place and cut down on vibration.

Put in the new valve, connect the hoses and the electrical connector. You are done.

My idle is much better, really steady at about 900 rpm. Now it returns to idle and doesn't fluctuate at all! Finally.

Greeny is running Trionic 5 (T5), so the idle is super steady in general, unlike the 'hunting' you have on LH (stock) cars. That's why I was perturbed that the idle was a bit erratic.