Allen,
I don't actually do it but they are tested and any bad components are
replaced.  Certain solder joints which are known to be bad from the
factory are repaired and then they are tested in a Vanagon to be sure
there are no DOA units.  At one time I was getting these rebuilt by a
company in California (which shall remain nameless).  They have a
"factory" and many people working for them.  Out of four ECUs I got from
them 2 were dead and one had the RPMs reading twice what it should.  The
fourth one worked though.  Of the ones we rebuild our failure rate out
of the box is zero because they are tested in a van.  So we go above and
beyond what other rebuilders do and also ours are cheaper by at least
$100.

Ken Wilford
John 3:16
www.vanagain.com

Allan Streib wrote:
> What exactly do you do to "rebuild" them?
>
>
> On Tue, 14 Apr 2009 08:51 -0400, "Ken Wilford" <kenwilfy@COMCAST.NET> wrote:
>
>> Scott, I sell rebuilt ECUs for the Vanagon and have for many years.  I
>> even sold the performance 1.9l ECUs for a while.  People get all weird
>> sometimes when buying an ECU.  They will insist on the exact same part
>> number they have, and also the same manufacturer.  They want a certain
>> style of body on the ECU (plastic or metal).  What it all boils down to
>> is this.  Any Vanagon 021 ECU will work in a digijet waterboxer Vanagon
>> 83.5-85.  Any Vanagon 022 ECU will work in a 2.1l Vanagon digifant.
>> Believe me I have tried every combination you can imagine over the years
>> and they all work fine.  If the guy is asking for a 021 C he can use any
>> 021 ECU.  I have a pile of them sitting here.  I sell rebuilt Vanagons
>> ECUs for $250 plus $100 core charge.  Just FYI.
>>
>> Ken Wilford
>> John 3:16
>> www.vanagain.com
>>
>>
>
>