O2 Crossover Counts
#2
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This is the number of times per second the O2 sensor voltage values crosses from below to above the mid-range value (0.450v, equaling 14.7:1 A:F ratio). The PCM uses this O2 sensor value to calculate the proper amount of fuel to inject to keep the A:F ratio right.
As far as I know, that number should be around 30-40 (or higher). Yours is really tired and slow, and will lead to poor mileage (and possibly poor acceleration/throttle response). Sounds like it'* time for a new O2 sensor.
As far as I know, that number should be around 30-40 (or higher). Yours is really tired and slow, and will lead to poor mileage (and possibly poor acceleration/throttle response). Sounds like it'* time for a new O2 sensor.
#3
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Originally Posted by agrazela
As far as I know, that number should be around 30-40 (or higher).
Thanks! I thought 02 sensor is to blame but during the scan the O2 sensor goes from rich to lean often and the voltage from the o2 changes right in range.
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