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My spedo is not accurate. I used my autoenginuity to try to correct it and now I'm 6 mph off at 55 and 65. Spedo reads high. What am I doing wrong? Do I have a bad sensor? Any advice? Thank you!
you need to go to the manufactures website for your tire. or go to tire rack.com find your tire and it will give you the correct outerdiameter size. post up what size your tires are on here and ill help you look
I'm using my gps think it's a garmen to judge my actual speed. I'm not sure about a speed adjusting module? I never thought to look for one. Is the speed sensor on the transfercase? Other than being under the truck by the speed sensor, is there another common spot where it could be? Also I hooked up my autoenginuity and the readout for speed was accurate with the speedometer, so I will look for a little box wired in somewhere.
Ok I looked under the truck and under the dash and under the hood the only non factory item I found is what I think is a gps transmiter, a black box aprox 2" square and a quarter inch thick. It's above my spedo cluster, it has power going to it, a yellow wire streched out for an antenna I would assume. it also has a blinking green light. I cannot find any spedo correction device. Also I don't know where the speed sensor is! Is it in the transfercase? Does the speed sensor have a gear on it that could have been changed? What could be my problem? My spedo being off drives me nuts!!! Plus im sure it effects the computer some how being off? Please help! You people are awesome! Together we can do it!!