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Jeep Wrangler JK
JK General Discussion
Speedometer off (tried two different calibrators)
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<blockquote data-quote="Hangumhi" data-source="post: 438043" data-attributes="member: 21624"><p>My speedometer is off by 6-9mph. Higher speeds (above 50), its off by about 6mph. Lower speeds (between 20 and 50) it's off by approximately 9mph. </p><p></p><p>It has a four inch lift and 35" tires. It is an 08, JKU Rubicon.</p><p></p><p>So, I bought two different calibration devices. One is the ECRI and the other is the Vgate iCar Pro. The ECRI uses their own proprietary app. I use the Jscan app with the Vgate. Both units connect fine and say that the programming is successful when I change the tire size...however absolutely nothing changes with the speedometer. I have worked with both Jscan and ECRI, and both companies are stumped. I have done absolutely everything they can think of but the speedometer stays the exact same. I have even reprogrammed for 40" tires...no difference in the speedometer. </p><p></p><p>Any thoughts on where I can take this for a next step attempt?[ATTACH=full]118874[/ATTACH]</p><p></p><p>[ATTACH=full]118870[/ATTACH]</p><p></p><p>[ATTACH=full]118871[/ATTACH]</p><p></p><p>[ATTACH=full]118872[/ATTACH]</p><p></p><p>[ATTACH=full]118873[/ATTACH]</p></blockquote><p></p>
[QUOTE="Hangumhi, post: 438043, member: 21624"] My speedometer is off by 6-9mph. Higher speeds (above 50), its off by about 6mph. Lower speeds (between 20 and 50) it's off by approximately 9mph. It has a four inch lift and 35" tires. It is an 08, JKU Rubicon. So, I bought two different calibration devices. One is the ECRI and the other is the Vgate iCar Pro. The ECRI uses their own proprietary app. I use the Jscan app with the Vgate. Both units connect fine and say that the programming is successful when I change the tire size...however absolutely nothing changes with the speedometer. I have worked with both Jscan and ECRI, and both companies are stumped. I have done absolutely everything they can think of but the speedometer stays the exact same. I have even reprogrammed for 40" tires...no difference in the speedometer. Any thoughts on where I can take this for a next step attempt?[ATTACH type="full"]118874[/ATTACH] [ATTACH=full]118870[/ATTACH] [ATTACH=full]118871[/ATTACH] [ATTACH=full]118872[/ATTACH] [ATTACH=full]118873[/ATTACH] [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
Speedometer off (tried two different calibrators)
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