Emissions Relevant Misfires: Notes

Emissions relevant fault handling is done by utilizing cylinder specific counters (fzabgzyl_0.... fzabgzyl_7  , see Figure) that are incremented each time a misfire is counted for the associated cylinder. The total sum of all misfires within every 1000 crankshaft revolutions is continuously tracked with another counter fzabgs  . A reset of all counters is performed at the end of every 1000 crankshaft revolutions. Each cylinder is identified that individually has more than 10% of all detected misfires.