2012 silverado intune - tire calibration

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fightenfire
Posts: 13
Joined: Sat Dec 31, 2011 4:42 pm

2012 silverado intune - tire calibration

Post by fightenfire »

Purchased and installed the intune for my 1500 silverado and loaded new tire calibration of 305/45/22 and now my mph is off by 5 and the mileage trip is running almost 3/10ths of a mile fast... suggestion to fix this issue?
2012 Chevy Silverado Southern Comfort
Volant Cold Air, Magnaflow exhaust, Amsoil Synthetics, inTune with 87 octane tune
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mikel
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Re: 2012 silverado intune - tire calibration

Post by mikel »

fiddle with the tire size until the speedo is correct.

try entering 40 for aspect ratio to start....
Mike Litsch
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fightenfire
Posts: 13
Joined: Sat Dec 31, 2011 4:42 pm

Re: 2012 silverado intune - tire calibration

Post by fightenfire »

mikel wrote:fiddle with the tire size until the speedo is correct.

try entering 40 for aspect ratio to start....
i just went in and modified the tire size only option and it seemed to work out well... i was thinking to myself there was no way that adding this and the CAI would give me 2.5 mpg off of one tank :normal:
2012 Chevy Silverado Southern Comfort
Volant Cold Air, Magnaflow exhaust, Amsoil Synthetics, inTune with 87 octane tune
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