How to improve Automatic Transmission shifting? - Page 2 - JeepForum.com

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post #16 of 21 Old 06-06-2013, 11:33 PM Thread Starter
JSAN
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Quote:
Originally Posted by Gageraid View Post
That makes me sick.
yup, plus my jeep only gets ~380km per tank. (~235miles)

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post #17 of 21 Old 06-07-2013, 11:24 AM
shawnicles
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yup, plus my jeep only gets ~380km per tank. (~235miles)
You must have beefy tires on there? That's what I get in the city with a 3 inch lift, open country mt's, cai, spacer and exhaust.
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post #18 of 21 Old 06-07-2013, 12:52 PM Thread Starter
JSAN
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You must have beefy tires on there? That's what I get in the city with a 3 inch lift, open country mt's, cai, spacer and exhaust.
245/70/16 They'r Light Truck tires with thicker sidewalls.

No lift
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post #19 of 21 Old 06-07-2013, 05:15 PM
shawnicles
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Ok makes sense, mine are 10 ply as well and the same size. I didnt lose anything noticable with the lift but I did with the tires
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post #20 of 21 Old 06-12-2013, 09:17 PM Thread Starter
JSAN
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So I uploaded the program to the ECM. First I went on the computer and updated the programmer and then Selected 2007 to 2010 3.7L Engine option and it updated it.

Then I went to the Jeep and installed it. First it gave me an error after the copying process (before writing) and told me to restart it.

After restarting it, it installed fine.

There is a very obvious difference in the acceleration. It accelerates pretty quickly now and even idles at little less RPMs than stock.

However My ESP light and traction control symbol stay lit in the instrument panel. What could be causing this?

I changed my tire size from 29.25 to 30.5. And kept everything else stock, in the programmer. anyone else have this problem?
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post #21 of 21 Old 06-12-2013, 09:25 PM
Gageraid
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Quote:
Originally Posted by JSAN View Post
So I uploaded the program to the ECM. First I went on the computer and updated the programmer and then Selected 2007 to 2010 3.7L Engine option and it updated it.

Then I went to the Jeep and installed it. First it gave me an error after the copying process (before writing) and told me to restart it.

After restarting it, it installed fine.

There is a very obvious difference in the acceleration. It accelerates pretty quickly now and even idles at little less RPMs than stock.

However My ESP light and traction control symbol stay lit in the instrument panel. What could be causing this?

I changed my tire size from 29.25 to 30.5. And kept everything else stock, in the programmer. anyone else have this problem?
I know close to NOTHING about tires, but if the tire size you have now hasn't changed much, and the speedometer is correct, don't change the tire size on the Hypertech. You shouldn't have any lights illuminating. You can call them or contact them VIA Facebook.
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