Quote:
Originally Posted by bestclimb
scan gauge and similar do not really show fuel metering. they know the air flow. the only thing that sees exactly what the injectors are doing is an MPGuino. If the magnets are actually doing something to the fuel, and the computer is sending less, this is the only system other than actually measuring the fuel flow via a highly calibrated tank that will show fuel flow accurately.
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If the computers sending less fuel the fuel trim % should change, SGII should pick that up with the X gauges on some cars (not that I know how to use them).