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Old 01-11-2013, 04:01 PM
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JamesDean JamesDean is offline
Electrical Engineer
 
Join Date: Apr 2005
Location: NE Ohio
Posts: 5,037
Quote:
Originally Posted by gjgogel View Post
The reason that only that model of 123 uses that amplifier is because the TD for 1981 was the first year that it was a turbo. In that year only, they used the 126 engine and transmission including the electric speed sensor instead of a cable. 1982 and later used the 123 turbo transmission.
This is what I suspected. I dont know how I missed this post but I did suspect that they used a different sensor than what the rest of the 123's used.

This now makes sense since the 003 545 86 32 unit is equipped non-cable driven speedometer cars.
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