Quote:
Originally Posted by Fast_Freddy
Wrong on both counts. Our Denso "AFR sensor" is a wide band and can read richer than 11.02:1. The resolution limit in this case is the software.
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The factory sensor isn't a true wideband. Not is it a narrow band. It's a broad response narrow band sensor that is reasonable accurate down to ~11.5 or so. This is why the o2 sensor calibration doesn't extend downwards to the 10:1 as a true wideband sensor/controller would.