07 CTS-V Speedometer off after gear change
#24
CTS-V Shifter Sales
iTrader: (6)
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You have to change the number of vehicle speed sensor (VSS) pulses per mile to correct the speedo. It's a simple ratio of the 4.1/3.73x(49840). I think 49840 is the stock number. If not, substitute your stock number in for that.
It will NOT autocorrect, it will revert to a different calibration if it determines that speed sensor has failed. That calibration would theoretically make it read like it had stock gearing and tires.
It will NOT autocorrect, it will revert to a different calibration if it determines that speed sensor has failed. That calibration would theoretically make it read like it had stock gearing and tires.