Vanagon EuroVan
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Date:         Fri, 20 Nov 2009 19:47:16 -0500
Reply-To:     David Beierl <dbeierl@ATTGLOBAL.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         David Beierl <dbeierl@ATTGLOBAL.NET>
Subject:      Re: How many volts can ECU handle?
Comments: To: neil n <musomuso@gmail.com>
In-Reply-To:  <c4e7c5f90911201449w7200ee51k576036da2a91704@mail.gmail.com >
Content-Type: text/plain; charset="us-ascii"; format=flowed

At 05:49 PM 11/20/2009, neil n wrote: >So there's obviously something in the ECU circuitry that regulates >and/or protects the voltage sensitive components from damage (within >reason). Something similar to the Vanagon voltage stabilzer on the >instrument cluster foil.

There is for sure a +5v regulator. On Max Wellhouse's Bosch 025 906 022 (which has about 125 cracked solder joints I'm about to start soldering, not counting the ones that Darrell or someone already reworked a few years ago) there are four large three-legged components clipped to the big heat sink. I'd be fairly surprised if one of them was not a +12v regulator. That leaves one for ignition drive and one for FI drive.

Yours, d


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