Computers
Car Computers and Sensors
US Navy

How do trip computers calculate fuel used against mileage covered?

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Wiki User
2006-03-27 05:06:16
2006-03-27 05:06:16

Basically you have a fuel flow meter which measures amount of fuel and you have an odometer input to your ECM. Both of these inputs are used to calulate the average mpg. The ECM knows the fuel tank capacity, which gives the "Miles to Empty" calulation. I really enjoy the trip computer in my 2000 Mercury Cougar.

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You can't. The mileage is stored by the on board computers.

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It is stored in both the body and engine computers.

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You don't. It's against the law.

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Miles driven divided by fuel used. Miles/gallon

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they designed odometers attached to the wheels.

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Need mileage of vehicle in question to calculate


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