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What were the resulting voltages for each resistance (100k,12k,1.2k)?
I just went back & read your earlier posts, and you say your speedo is dead? You have a mechanical speedo, which spits out a 0v/5v vss signal, right?
It seems weird that 1.2k would drop your signal down to 1.8v. I dont remember offhand what mine was at 1.0k, but it was well over 3v, i'm guessing 3.3 - 3.5v.
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