Fuel consumption display

[Archangel]

Isn't the injector's on_time proportional to its output?

Hi Sirvio,
The short answer is, likely not. The OEM computer in your car keeps adjusting injector on time based upon sensor input from the oxegen sensor in the exhaust, the throttle position sensor, the mass airflow sensor, if equipped, a MAP sensor, if no MAF sensor, temp sensors in the air and water, a BARO sensor, a data lookup table, Knock sensor, and probably the engineer's astrologer too. So there is no design requirement for the injectors output to be linear, in fact most computers have what they refer to as BLOCK LEARN, which is most likely flash or eeprom memory to keep track of fuel curves so as to alter the computer's calibration around your driving habits. I notice my old exCHP car sure runs better after the wife drives it for a while.