Date: Wed, 24 Jun 1998 13:15:18 -0500
Reply-To: Darrell Boehler <midwesty@TAOS.MIDWEST.NET>
Sender: Vanagon Mailing List <Vanagon@vanagon.com>
From: Darrell Boehler <midwesty@TAOS.MIDWEST.NET>
Subject: bosch digifant
Content-Type: text/plain; charset="iso-8859-1"
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Hi Volks,
I have come across a digifant made by bosch that has the same vw part
number as the vw digifant 025 906 022. The bosch unit, with bosch number
0 261 200 065 on it also, has components laid out slightly different. I
also notice it has a plugable rom module. The bosch digifant seems to give
my 86 westy more low end torque. I have always had good torque above 3k rpm
but this unit seems to improve the 1-3k range. I pulled this unit from an
87 California van while junk yarding in the SLO area last month. I rarely
drive a vw below 3k so I guess it doesn't matter that much except the bosch
unit doesn't stumble or hesitate coming off the line in an easy driving
mode.
Anyone have any knowledge about different digifants? If the
difference is all in the rom it wouldn't be that difficult to pull the rom
chip off the vw unit and install a plugable unit with a copy of the one in
the bosch unit. This could be slightly illegal. Maybe the California vans
run richer than the non California units . Actually both styles seem to use
the same mixture according to the oxygen sensor and my digifant tool. Any
difference must be primarily in the ignition timing. tia for sharing any
knowledge.
Darrell Boehler
Makanda Illinois
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