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Member 911 Anonymous
Join Date: Sep 2007
Location: Rancho Palos Verdes
Posts: 14,329
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For our aging high mileage cars, Yes.
Unfortunately BOSCH does not offer a replacement potentiometer (that white green PCB board). Our only option is to reposition the arm so it will take a new path on the strip.
Caveat, you must be careful to make absolute certain the tension is adequate and not too much to make your new path wear out too quickly. The other thing is to check the contacts are absolutely smooth so it can glide without gouging the strip.
Yes, quite complicated to say the least.
The 9 volt with DVM test shows where it is not making a full contact ergo the fault.
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'85 Carrera Targa
Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace
PCA/POC
Last edited by DRACO A5OG; 05-30-2018 at 10:04 AM..
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