raregula Posted May 28, 2012 Posted May 28, 2012 I have been fighting an issue with random misfire codes and lean bank .the random misfires are from p300, and or most all cylinders they jump around. when I scan it with FLY 200 PRO Scanner for live data it does not show voltage from 02 sensors or live short or long term fuel trim. my question is more about why the 02 sensors do not read on my scan tool?
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