Hi Joel and Listees, Just thought you should know that VW has revised the part to correct the misfire referred to in the following service bulletin. The new part number is 025 906 302A. It seems that the old part 025 906 302 was not correct. Later, Denys Mueller '86 Westy PO '80 & '86 Westys'
from Service Bulletins, Model Year 1992 ........................................................................ Technical Bulletin Group: 24 Number: 92-01 Date: February 29, 1992 Subject: Vanagon Intermittent Misfire Model(s): All Vanagon Digifant Fuel Injection Engines 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 |
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