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#6
02-17-2012, 05:40 PM
Hummer Guru
Join Date: Oct 2005
Location: Charlotte, NC
Posts: 2,767
Re: programming speed sensor after installing 40" tires?
Quote:
Originally Posted by Yetti
40" x 3.1415 = 125.66" / 12" = 10.47166 feet in dia.
take the value and divide 5280'/ 10.471 = 504 rotations per mile
the value the ecu needs is the count per mile. so you have to do a little math.
Yup, I understand the problem, I just can?t find someone to reset the parameters in the ECM.
Mark
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