Quote:
Originally Posted by Old Mechanic
Measuring only injector pulse width, in a system with a fuel pressure regulator that is typically vacuum controlled will not give you the required accuracy of the amount of fuel delivered.
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I would beg to differ. I have found MPGuino to be a lot more accurate than either the OBDII-based scanners (to include ScanGauge II) or the on-board factory trip computers I have used. MPGuino measures fuel injector pulse widths directly.