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Tachometer

   
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Old 09-22-2017, 07:21 AM
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Default Tachometer
Where does the tach get its signal from??


Mine is bouncing all around..
 
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Old 09-22-2017, 11:00 AM
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From the PCM on a serial data line with the rest of the gauges. Bad stepper motor? Check PCM output for RPM using a scanner.....
 
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Old 09-28-2017, 08:33 AM
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What am I looking for?
 
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