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Histogram set up for MAF

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Attempting to calibrate the MAF table on a e92 ecm wit HP tuners, watche the 204 webinar and wa slooking for input on using the factory oxygen sensors.

i cant seem to get the MAF to read on the hystogram when set up for either eq error or afr error, is there something im missing or is that because i need a external input to make that work?

Any input is appreciated


In order to measure EQ or AFR error you will need an external wideband.

thank you, that is what i was assuming