Cylinder Individual Misfire Detection: Notes

Any combustion of every cylinder the ion current is measured. The ion current waveform is used to calculate the spark-time and combustion integral value. Ignition misfire will be detected due an insufficient short spark-time or maximum measured spark-time (missing spark). If the combustion integral value not fulfills a sufficient value according engine load and revs, a combustion failure misfire is detected. In case an ion current satellite error or an ion current signal error is present, the entire engine bank is switched off respectively.