Apples to apples Plati just driving around town

[NukeLife]

So after the first 15,300+ miles, my trip computer was off by +0.89 MPG (5.4%) which equates to about 1 gallon. The standard deviation was 0.4 MPG, so pretty wide variation. Using the formula for actual mpg / computer mpg * 1000 (factory default AFE value) I came up with a corrected AFE bias of 949. To set the AFE value you have to enter the engineering test mode by holding the Menu button while pressing the start button without pressing the brake pedal, holding the menu button until ET displays on the cluster. You can then scroll to find the AFE bias value.

So my results on the first fill after adjusting the trip computer was 0.05 MPG lower than the actual. It is hard to get closer than that. After I collect a few more data points I can post my results. I have only been that close once before and that was on a top off before we left on a trip (7 gallons).

I couldn’t get past the third sentence of this until I taped up the bridge of my eyeglasses, and hike my pants waist up about 4 inches.
...I’m all good now, but it’s drafty around my ankles..

 

[FernieB5of8]

Pulling battery cable won’t do it. You need to drain the capacitors for the keep alive memory reset to work. Pull battery cable, turn every accessory light on hi and lows, interior, door. All that. Or just get a tuning device and reset it that way. But just pulling a cable won’t do it