MPG and range calculation - ZR-1 Net Registry Forums

secondchance · 11-30-2014

Out of curiosity, anyone know how our ECM or BCM calculates these figures? Is this based on injector pulse count? Does fuel level contribute to these calculation?
I deleted secondaries and, as a result, both injectors fire pretty much all the time. And yet, average MPG reads reasonable although I haven't back checked mathematically with mileage vs. amount of fuel to fill up. I was just curious if anyone knew how displayed average MPG is calculated by ECM.

11-30-2014	#1
secondchance Join Date: Aug 2006 Location: McLean, VA Posts: 3,723	MPG and range calculation Out of curiosity, anyone know how our ECM or BCM calculates these figures? Is this based on injector pulse count? Does fuel level contribute to these calculation? I deleted secondaries and, as a result, both injectors fire pretty much all the time. And yet, average MPG reads reasonable although I haven't back checked mathematically with mileage vs. amount of fuel to fill up. I was just curious if anyone knew how displayed average MPG is calculated by ECM.