2006 PONTIAC G6
79,000 MILES
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CYNTHIAMCCREEDY-MCINTOSH
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  • 1 POST
If I change the ecm in my pontiac, will it change the original miles on speedo?
Jan 13, 2013 at 12:17 AM
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ASEMASTER6371
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no, why are you changing it???? rare failure and expensive. after you buy a new one, never used, it must be flashed at the dealer. if it has failed, if you do not find the reason it failed, the new one may fail immediately

Roy
Jan 13, 2013 at 12:21 AM