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Not sure what a shift indicator is (do you mean gear indicator?), but it sounds like maybe the speed sensor. This is behind the rear cylinder on top of the crankcase, should be a black or white connector. Also, battery voltage too low can cause weird issues as well as a bad ground to the chassis and charging system shorts. Keeping it simple: slipping gears? battery ok? speed sensor connected? Wouldn't hurt to reset the ECM by removing the (-) of the battery for a few hours or overnight. Maybe then do the IAC reset (procedure is around here somewhere).

FYI the speedometer and gear indicator are calculated using various inputs. There is technically no gear position sensor which is why the gear could be displayed incorrectly after installing an underdrive pulley.
 
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Discussion Starter · #6 ·
Not sure what a shift indicator is (do you mean gear indicator?), but it sounds like maybe the speed sensor. This is behind the rear cylinder on top of the crankcase, should be a black or white connector. Also, battery voltage too low can cause weird issues as well as a bad ground to the chassis and charging system shorts. Keeping it simple: slipping gears? battery ok? speed sensor connected? Wouldn't hurt to reset the ECM by removing the (-) of the battery for a few hours or overnight. Maybe then do the IAC reset (procedure is around here somewhere).

FYI the speedometer and gear indicator are calculated using various inputs. There is technically no gear position sensor which is why the gear could be displayed incorrectly after installing an underdrive pulley.
I will check all of your ideas, thank u
 
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