Fuel Pressure gauge - "bar" conversion done wrong in TS?
Posted: Wed Jan 25, 2017 12:36 pm
Hi,
My car has a vac-referenced pressure regulator and a "gauge style" sensor (referenced to atmospheric).
I made a custom.ini so the fuel pressure gauge is not only reading the raw pressure in kPa but directly displaying the differential fuel pressure across the injectors in bar instead of kPa.
I came up with the following code:
where sensor03 is set as my Fuel-pressure sensor in generic sensor inputs.
However I just found out, that TunerStudio has implemented that gauge already, so creating the custom.ini actually was unnecessary.
The thing though is, that my selfmade gauge is showing different values than the one already implemented in TS.
I altered my formula until the two values matched and this is what I came up with:
Can somebody explain to my why the conversion from kPa to bar would be done by dividing by 101.35 instead of 100 ?
1 bar = 10^5 Pa = 100kPa
So why 101.35? Seems to me that this is wrong in TS?
Thanks, David
My car has a vac-referenced pressure regulator and a "gauge style" sensor (referenced to atmospheric).
I made a custom.ini so the fuel pressure gauge is not only reading the raw pressure in kPa but directly displaying the differential fuel pressure across the injectors in bar instead of kPa.
I came up with the following code:
Code: Select all
[OutputChannels]
Fuelpressure = { (sensor03 - map + barometer) / 100 }
However I just found out, that TunerStudio has implemented that gauge already, so creating the custom.ini actually was unnecessary.
The thing though is, that my selfmade gauge is showing different values than the one already implemented in TS.
I altered my formula until the two values matched and this is what I came up with:
Code: Select all
[OutputChannels]
Fuelpressure = { (sensor03 - map + barometer) / 101.35 }
1 bar = 10^5 Pa = 100kPa
So why 101.35? Seems to me that this is wrong in TS?
Thanks, David