1990 A80Q Calif 5 cyl 5spd Air Flow Sensor, 140k miles

[Huw Powell]

> testing.  Now, the other day, it was quite
> cold and the light came on right during/after
> cranking. It happened several times when
> cranking cold.  This time I got the code: 2232
> Air Sensor Potentiometer fault.
>
> Does anyone know:
>
> 1. Is this failure normal after 140k miles

shouldn't be

> 2. What the pn is for this piece
> 3. any reco on where to get it from (called
> several places and nobody carries it -- they
> say it's a dealer item)

I don't know if your car is a 20v (7A) or 10v (NG).  I suspect 10v?  The
potentiometer is bolted to the fender side of the fuel distributor, and
has a 3 pin connector.  The bolts usually have epoxy or something
covering them, but you can remove this piece.  Might I suggest a
junkyard, ideally same engine type though I suspect earlier CISE cars
migth use the same potentiometer.

They are hard to test with an ohmmeter since they have a very low
overall resistance, it's sort of easier to build a little harness and
tap in to the center wire (the other two are 0 and 5v) and measure its
output while slowly lifting the air plate.  The voltage should show a
slow steady rise with no flat spots or drop outs.

FP does not list a part number.

I think most repair places would "suggest" swapping in a used fuel dist
assembly since it is easier...

--
Huw Powell

http://www.humanspeakers.com/audi/

http://www.humanthoughts.org/