Date: Wed, 6 Aug 2003 13:26:23 -0400
Reply-To: vw4x4@FYI.NET
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Eric Zeno <vw4x4@FYI.NET>
Subject: Re: Questions for you conversion experts
Content-Type: text/plain; charset=us-ascii; format=flowed
Rob,
Obviously this guy has figure these things out but is keeping
his secretes to himself. Try E-mailling him.
http://www.evcl.com/vw/
I think us swappers, would all like to know the answers.
Eric
Robert Keezer wrote:
> If you know Motronic OBD 1 or you are familiar with these engines then
> this
> is for you.
>
> 8 years ago I did a 1.8 91 Jetta conversion in my 82 Vanagon.
>
> In 1999 I swapped to a 2.0, but kept the '91 FI system.
>
> I had been fighting gremlins for about 8 months.
>
> The gremlins told me I needed a new AFM.
>
> But since I had the complete Motronic harness from the 95 Golf. I
> decided to
> replace the entire FI system.
> This system has advantages over the earlier one, including the on-board
> diagnostics as found in the 93-later VW's etc.
>
> I'm splicing the management harness from a '95 2.0 Golf into my Vanagon,
> replacing the Digifant 2 system that I have been using since 1995 in
> my 82
> Vanagon Westfalia with 2.0 Golf inline -four.
>
> This conversion was done myself, but now that I'm stepping up to the next
> generation of fuel injection called Motronic, I am making some
> discoveries.
>
>
> Searching the net I encountered information that I did'nt have .
>
> One was the road speed sensor, which had this been overlooked, the engine
> would stall at rpms over 5,000.
>
> 115 hp is rated at 5400 rpm, so this had to be solved.
>
> In the donor car, the Golf III has no speedometer cable, but a vehicle
> speed
> sensor that sends a digital signal from the transmission.
>
> This signal is needed for the speedometer to work, and several other
> functions, including sending this road speed signal to the ECM, or engine
> computer.
>
> The solution is to get the RSS module from the back of a A-2
> Golf-Jetta with
> auto trans.
> The back of the Vanagon speedometer has a little black plastic tab
> labeled
> with the word "abgriff", German for 'pick-up" .This removable tab allows
> installation of the RSS.
>
> Inside the Vanagon Speedometer is a little flywheel with a magnet.As it
> passes the RSS pick-up , a small current is generated- this impulse
> signal
> goes to the ECM .
>
> So this is where the RSS pick-up or sender fits from the A-2 VW.
>
> All that has to be done here is attach three wires to the pick-up and run
> them to the engine harness.
>
> A question I still need an answer for is an electrical diagram I found
> shows
> a oxygen sensor control unit.
>
> What is this?
>
> Also, does anyone know if there is a site where I can get a electrical
> diagram for a 1995 Golf?
>
>
>
>
>
>
>
>
>
>
>
> Robert
> 1982 Westfalia
>
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