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Fuel Consumption - What does X represent.
Posted: Sun Oct 24, 2021 2:55 pm
by JohnDee68
In the definitions under "fuel consumption" it reads and returns a value "x" which then is used in the calculation to try and get live fuel usage.
Does anyone know what the value of "x" is representing ?
Is it something like milliliters per km perhaps ? Where I might even think it is possibly Liters per Hour when divided by 100.
Re: Fuel Consumption - What does X represent.
Posted: Sun Oct 24, 2021 4:25 pm
by immortality
I believe X is the number generated by the PCM that is then used to calculate the actual fuel usage.
Re: Fuel Consumption - What does X represent.
Posted: Tue Oct 26, 2021 3:18 pm
by JohnDee68
immortality wrote:I believe X is the number generated by the PCM that is then used to calculate the actual fuel usage.
I agree and realize that. I am actually wanting to know what the value of x represents.
Re: Fuel Consumption - What does X represent.
Posted: Tue Oct 26, 2021 3:42 pm
by The1
the value is worked off injector pulse time.
Re: Fuel Consumption - What does X represent.
Posted: Tue Oct 26, 2021 4:14 pm
by Charlescrown
And you bet there is a little formula to determine that.
Re: Fuel Consumption - What does X represent.
Posted: Tue Oct 26, 2021 7:32 pm
by JohnDee68
The1 wrote:the value is worked off injector pulse time.
Do you know what that value is in it's units of what then?
Re: Fuel Consumption - What does X represent.
Posted: Tue Oct 26, 2021 7:33 pm
by JohnDee68
Charlescrown wrote:And you bet there is a little formula to determine that.
No doubt there likely is.
Re: Fuel Consumption - What does X represent.
Posted: Wed Oct 27, 2021 9:08 am
by antus
It might help if you told us what computer / os you are talking about, and what piece of data. there is various fuel options that you could be referring too, all of which have an X in the associated ADX. Which, if you have an ADX, is where you should be looking for the equation. If you dont you should be looking at whats known about similar generation / family as the equation is likely the same.
Re: Fuel Consumption - What does X represent.
Posted: Thu Oct 28, 2021 9:51 am
by The1
Re: Fuel Consumption - What does X represent.
Posted: Thu Oct 28, 2021 11:25 am
by JohnDee68
antus wrote:It might help if you told us what computer / os you are talking about, and what piece of data. there is various fuel options that you could be referring too, all of which have an X in the associated ADX. Which, if you have an ADX, is where you should be looking for the equation. If you dont you should be looking at whats known about similar generation / family as the equation is likely the same.
I am referring to the value that is claiming it is being read as the cars "Fuel consumption" value within the cars computer.
It is on a VX 2002 v6 n/a. Using the Enahanced ADX which is what i was advised to be using.
The formula within the adx doesn't calculate a recognisable figure such as L/Hr or even L/km. So without knowing what the value being returned (value given to X) it is not possible to work to correct the formula for a desired and accurate result.