To let the ECU cut fuel if a spark plug stops firing, for the express purpose of
preventing unburnt fuel from overheating the catalytic converter.
Not exact matches
We can only conjecture why it keeps firing anyways - my personal theory is since it's primary goal is to
prevent catalyst overheating from
unburnt fuel, it just gives it periodic breaks then continues to retry, but it could also just be your everyday limp mode bouncing around at an RPM cutoff point.
If such fires recurred with sufficiently high frequency, and in a pattern that left few areas
unburnt, it is possible that elevated predation due to fire could reduce small mammals and
prevent recovery over large areas.