trip computer weirdness-VW 1301?

[SAM LETZRING]

Here's the official dope on the VW 1301

http://www.bentleypublishers.com/tech/vw/bentley.vw1301.testing.htm?ticket=none


Sam


----- Original Message ----- 
From: "Nick" <nick at beol.net>
To: <quattro at audifans.com>
Sent: Sunday, April 30, 2006 12:26 AM
Subject: Re: trip computer weirdness-VW 1301?


> Vehicles are '90 200 and '91 100.
>
> I'm trying to determine why my trip computer is so far off.  Both the
> average mpg and the miles to empty.
> One of the test from Bentley uses a VW1301 test tool to measure the fuel
> sending unit. It says set the VW1301 to 250. Connect between two terminals
> on the fuel guage sender harness.
> Does anyone know if that is 250 ohms?  Probably representing a certain
> fuel level in the tank.
>
> Has anyone ever adjusted the air flow sensor potentiometer?
>
> TIA
> Nick
>
>
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