Rawze.com: Rawze's ISX Technical Discussion and more
Wrong rear end gear ratio and tire rev per mile on ecm - Printable Version

+- Rawze.com: Rawze's ISX Technical Discussion and more (http://rawze.com/forums)
+-- Forum: Big Truck Technical Discussion... (/forumdisplay.php?fid=1)
+--- Forum: Ask Your question... (/forumdisplay.php?fid=45)
+--- Thread: Wrong rear end gear ratio and tire rev per mile on ecm (/showthread.php?tid=9364)



Wrong rear end gear ratio and tire rev per mile on ecm - Nero - 01-25-2024

Ecm had 2.64 actual ratio is 2.79, and tire rev
Was at 516 correct rev is 509.

Speed was off by 4 miles.

I corrected both, the speed is accurate now.

Is my total mileage off 460k?


RE: Wrong rear end gear ratio and tire rev per mile on ecm - Nero - 01-26-2024

Dealership said total miles and ave mpg will be wrong. I said sol i can minipulate my miles and not show any lol he said let me make a call.


RE: Wrong rear end gear ratio and tire rev per mile on ecm - Rawze - 01-26-2024

(01-26-2024 )Nero Wrote:  Dealership said total miles and ave mpg will be wrong. I said sol i can minipulate my miles and not show any lol he said let me make a call.

You go poking the bear on purpose, and next thing you know, you will get investigated for ODO tinkering. - Not something I would recommend.

Its best to get it set right, so that its accurate, and keep it there.