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Old 03-04-2014, 06:48 PM   #1
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2012 Wrangler 4.10 gear change

I just changed the gear ratio from 3.73 to 4.10, now my check engine light is on, code says incorrect gear ratio, trans goes into limp mode, what do I do now, help.

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Old 03-04-2014, 06:50 PM   #2
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Originally Posted by goneal32 View Post
I just changed the gear ratio from 3.73 to 4.10, now my check engine light is on, code says incorrect gear ratio, trans goes into limp mode, what do I do now, help.
Have you re programmed for your new gears? Flashcal or procal should do the trick

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Old 03-04-2014, 06:52 PM   #3
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yes need to recalibrate via like was stated above.
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Old 03-04-2014, 06:58 PM   #4
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have not reprogrammed for gear change, just completed gear change a few hours ago, Im not familiar with which, or what kind of programming device to use, thanks so much for the reply.
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Old 03-04-2014, 07:00 PM   #5
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have not reprogrammed for gear change, just completed gear change a few hours ago, Im not familiar with which, or what kind of programming device to use, thanks so much for the reply.
I have the flashcal and like it. Has a few more features than the pro cal and a screen. Also still cheaper than the flashpaq just not performance feautures. Which i think are just nonsense anyways.
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