programming speed sensor after installing 40" tires?

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programming speed sensor after installing 40" tires?

02-17-2012, 03:43 PM

Yetti

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Join Date: Apr 2004

Location: Grass Lake,Mi

Posts: 583

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Re: programming speed sensor after installing 40" tires?

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.

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