On Fri, Nov 20, 2009 at 4:47 PM, David Beierl <dbeierl@attglobal.net> wrote:
> 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.

Neat. Thanks.

Just for laffs, I *may* pop open my air cooled ECU just to see what it
looks like, but good to know my Jetta ECU is safe from my, uh, lack of
alternator testing!

;)

Neil.

-- 
Neil Nicholson '81 VanaJetta 2.0 "Jaco"

http://tubaneil.googlepages.com/

http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines