I'd like to add my two cents to the recent discussions on cleaning the AFM
wiper track. The point I'd like to make is that a brand new AFM costs about
$125 which isn't too awfully bad for a part that is so critical to the
performance of the Vanagon's fuel injection system. My engine was running
pretty well but I recently tested the AFM wiper output with an ohmmeter and
noticed there were some gaps or dead spots in the output. In other words,
the resistance did not increase smoothly as I moved the flap through its
range. I pulled out my spare AFM (brand new) and tested it and it's output
was smooth. After installing the new AFM I noticed some definate
improvements driveability, especially in the lower RPM range. Note that I
had already done the repositioned wiper trick on the old AFM about two years
ago. I bet there are many high-mileage Vanagons out there that would benefit
from a new AFM.

MM

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