Quote:
Originally Posted by RobertISaar
how does the scanguage calculate fuel economy?
two possible methods, one of which is significantly better than the other but requires more information.
method 1 is estimating fuel injected based on airflow readings from the MAF sensor and the target air/fuel ratio.
method 2 is calculating fuel injected based on injector pulsewidth, RPM, injector flowrate, number of injectors and injection scheme to create a fuel flowrate in gallons per hour.
guess which one is more accurate?  |
Scangauge uses MAF. MPGuino uses injector pulsewidth, and is more accurate generally, and significantly more accurate on lean-burn engines.