Re: [T3] Getting a pressure sensor?

["Kooser, Jacob" <jake_kooser@mtnsat.com>]

Yeah, I've opened them up before - not much to see.  It's basically like a
rotary switch inside, with 4 or 5 wipers, depending on year, that ride on
foil runs with little zig-zags in them, for lack of a better term.  When you
have the car off and the key on, if you rotate the throttle through full
rotation, I think you should hear 20 clicks, which is the wipers going over
the zig-zags.  The difference in resistance is interpreted by the ECU and
used for basic fuel enrichment, like a carb's accelerator pump.  At least
that's the way I understood it.  Did you set it using a multimeter?  I had
the worst time the first time I tried to improv the setting.  Once I put an
ohmmeter on it, the setting was much easier to get correct.

Jake Kooser

>-----Original Message-----
>From: Type 3 Mailing List [mailto:type3@vwtype3.org]On Behalf Of Wade
>Shen
>Sent: Tuesday, December 03, 2002 3:12 PM
>To: Type 3 Mailing List
>Subject: Re: [T3] Getting a pressure sensor?
>
>
>Thanks Jake,
>
>I have recently tried resetting the TPS.  Unfortunately, it 
>doesn't seem
>to resolve the problem.  Have you ever opened one up?  Perhaps 
>something
>is internally bad with mine, but I'll have to take a look 
>inside to know
>for sure.
>
>Wade
>

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