ECS light blink then bouncing idle then air flow potentiometer code??

["Alexander van Gerbig" <Audi_80@msn.com>]

    OK scene of the crime:
Driving down the road about a mile away from home.  Engine warming up.  Slow
down for a corner where a construction vehicle is, so about 20mph, car
shifts down into second, ECS light blinks once, idle becomes erratic and
bouncing exactly the same way if the ISV had been disconnected.  I pulled
over, pulled the codes with the idle bouncing and got 2232 air flow
potentiometer code.  Restarted and all was fine.
    I have gotten this code before and I had cleared the memory last night.
I have never seen the ECS light blink while driving before, and I have never
experienced the idle instantly going haywire at that low a speed.  The idle
will bounce occasionaly after a fast stop from prolonged highway speeds.
    Anyone have any ideas what's going on here?  I live on a dirt road so
maybe there is some loose wiring for something.  The diff pressure regulator
doesn't appear to be working properly, but I'm not sure about that.

Thanks!

    Alexander van Gerbig '88 80

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