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06 rubicon speedometer off

2323 Views 5 Replies 3 Participants Last post by  MAD MUDDER
I recently installed a HMF utility pipe, K&N Filter. I removed the carb to rejet and adjust the fuel screw. It runs alot better now but I know have a speedometer issue. My speedometer is definately off. When I slow down and come to a stop it will still say like 5mph for a second. When my speedo says I'm doing 40mph I am probably doing only 25 then when my actal speed catches up it seems like it is reading right. Still tops out at 58mph WOT. I tried doing the ECM reset procedure and it did ehat it was supposed to. (I heard the thing adjusting), Any other ideas on what could be causing this? All I disconnected on the carb was the vent lines and the sensor on the side of the carb. I left the choke cable and throttle cable attatched. Thanks for the replies.
2006 rubicon
hmf utility
1 - 6 of 6 Posts
well your tires are 2 sizes bigger than stock where the spedo was calibrated at. Maybe that is it or did it work after the tires.
It's not the tires. Like I said It happened after I took off the carb
i think that it just went bad, i dont think it has anything to do with you taking the carb off.
any other ideas?
if you have a warrenty get a new one or just ask a dealer what they think.
1 - 6 of 6 Posts
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