Not quite sure, but I think you may take the readings at the CPU.

Karl Wolz

----- Original Message -----
From: Joel Walker <jwalker@URONRAMP.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Friday, April 30, 1999 8:16 PM
Subject: Re: AFM

> the vw service diagnosis book i have says this about the Digijet
> (83-85 watercooled) air flow sensor:
>
> connections at
> air flow sensor
> (terminal nos.)       description
> specification
>
> 6 and 9                 potentiometer - total resistance
> 500-1000 ohms
> 7 and 9                 potentiometer - resistance               ohms
> change as sensorflap is opened
>                                measure through wiper arm
> (flap must move freely)
> 6 and 22               intake air temperature sensor          ohmmeter
> reading should correspond to graph
>
> shown.
>
> trouble is, i didn't think there were 9 connections at the air flow
> meter, much less 22 connections. :(
>
> hope it helps.
> joel