Everything on my overhead display module in my '07, 3/4 ton ,5.9,6 speed pick'm up truck is inaccurate,mpg is off 5 to 7 mpg,reads high,dte reads 800-900 miles to empty,only gets about 650 until empty,outside temp reads 5 deg. high,my service tech says he can't fix it because it is all in the ecm,they tell me chrysler won't replace the ecm to correct these problems,I have a problem with this answer, are there any dodge techs out there that knows the answer?, mrgenz,thanks
When my computer was flashed with a new update my mpg got a lot closer to accurate. This might help. I didnt notice if it changed any of the others.
