Date: February 29, 1992
Sender: Vanagon Mailing List <vanagon@vanagon.com>
From:
Subject: Vanagon Intermittent Misfire
CONDITION After driving for 1/2 to 2 hours at a constant speed, vehicle
experiences lack of power, cuts-out or stalls, often accompanied by
bucking or jerking of the vehicle. In ALL cases, the vehicle will
restart immediately. This symptom may not re-occur for several
weeks/months. Inspection by the dealer results in nothing conclusive.
Some air-flow meters may experience a vibration resonance of the
metering potentiometer wiper during extended constant driving. This
resonance causes the air-flow meter to supply an intermittent signal to
the Digifant ECU. The ECU will then default to a "no-load" condition
and reduce the injection time.
SERVICE Harness, Part No. 025 906 302, is available to resolve this
condition. * remove electrical connector from air flow sensor (see
Figure 24-174) * install converter assembly, Part No. 025 906 302,
between harness and
air flow sensor
NOTE If customer complaints persist after performing the above repair,
contact your Zone Product Support Specialist (TSM in Canada).
***************************************************************** *
CAUTION * * Part
numbers are for reference only. Always check with your * * Parts
Department for latest information. *
****************************************************************
........................... end ......................................
harness costs about $100! very simple to install. takes about three
minutes maximum. the new harness fits between the old harness and the
silver air-flow meter box attached to the air cleaner box. remove the
silver clip, wiggle out the big wiring connector (from the side of the
air-flow meter), connect the proper end of the new harness to the big
big wiring connector you just wiggled out, put the new clip into the new
connection; then take the other end of the new harness and plug it into
the air-flow meter connection. put the silver clip back. and you are
done.
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