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Does the o2 sensor have anything to do with the speedometer?

(1999 Pontiac Grand Am)
in Kinder, LA on March 10, 2014
The speedometer is off by 30 mph. Just took the car to oreilly's to check on engine as well and the o2 sensor came up as the problem with the engine. I'm wondering if it's effecting the speedometer or what?
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of G. T. Service Center on March 10, 2014
No; Has nothing to do with it. Vehicle speed sensor or wheel speed sensors, Abs module. Have the computer read to see if the computer is reading the signal, If so the cluster has an issue, more then likely.
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of G. T. Service Center on March 10, 2014
No; Has nothing to do with it. Vehicle speed sensor or wheel speed sensors, Abs module. Have the computer read to see if the computer is reading the signal, If so the cluster has an issue, more then likely.
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