How do you change mileage readings on a 2002 Pontiac Sunfire?

AudioboN

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Ok, I was messing with my car one day and I unplugged the PCM (Powertrain Control Module). Well I figured out I shouldn't have done that and plugged it back in. Now instead of my car reading miles it's reading something else (I have no idea what it is reading now, but it was a 100,000 miles and now it says 589,000), and I'm sure I havn't been that far in this car. So if anyone has any ideas please help me out!


Thanks.
 
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