How does the truck know a misfire accrued?

[stibuilder]

How does the truck know a misfire took place?

Does anyone know what group of sensors need to communicate to get a truck to display a misfire code? Trying to understand more about the issue im having by understanding what conditions need to be met to give a misfire code.

 

[THEFERMANATOR]

The ECM compares cam sensor VS crank sensor, then uses that info to figure the balance rates. If it doesn't see a cylinder respond to changes and still sees an imbalance via the cam and crank readings, it sets a mis fire code.