I'm learning to use my new scanmaster. The only thing I see so far is my cross counts are all over the place--from 02 to the 240's. Is this normal? What does this indicate? Tommy
CC counts that go all over the place means NORMAL! it means your o2 sensor is healthy and giving fast readings to the computer...cross counts are how many times the o2 sensor is adjusting the fuel mixture according to other variables...