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OBD gauges measure air, not fuel, so they can only ever be 'somewhat' accurate.
My advice is to settle on a calibration and leave it. The outright accuracy isn't really that important in the overall scheme of things. Set it to be a little on the pessimistic side so it encourages you to work a bit harder.
If you want improved accuracy and don't mind hard wiring, look into a UTComp. It measures fuel, not air.
Last edited by oldtamiyaphile; 04-09-2017 at 12:08 AM..
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