Date: Sun, 20 Oct 2002 15:48:00 +0100 From: Grunff <grunffnopsam.com> Subject: Re: 900i16v and rough idle -- AIC-valve suspected
Simo Melenius wrote: > How rare is it for an AIC-valve to break and is there anything I could > do to check it's fully functional? Very common, and the most likely cause of the symptoms you describe. > The resistance of the AIC-valve terminals is within the specified > range and the voltage to the harness connector is exact battery > voltage when unplugged, as it should be. The LH2.4 self-test audibly > clicks the AIC-valve open/closed as programmed, and I can feel the > clicks with fingers. However, the engine still runs rough when idle > and the only thing I've noticed that helps is lubricating the > AIC-valve: this effect lasts for few days only. The resistance reading doesn't tell you that the AIC valve is ok. The coils are ok, but the valve is probably sticking badly. The fact that lubricating it helps is further confirmation that it is the main problem. If I were you, I'd find a friendly Saab garage, borrow a good valve, and try it out. -- Grunff
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