What is the repair approach for multi-cylinder misfires?

[EthanRose]

Engine multi-cylinder misfires repair approach first involves checking high-voltage ignition faults, namely faults in the ignition circuit, mainly manifested as erosion, high-voltage breakdown, short circuits, open circuits, spark plug failure or incorrect model, increased resistance in cylinder wires, etc.; then eliminating faults in the computer control and execution circuits, primarily faults in the ignition primary and fuel injector control circuits; followed by checking whether the valves are eroded. Related introduction to engine misfires is as follows: severe engine shaking is a manifestation of engine misfires, multi-cylinder misfires in car engines are issues with the ignition system, the ignition system is not just about spark plugs, but also includes ignition coils and other wiring issues that need to be checked, as well as blockages caused by fuel injectors (blockages due to poor fuel quality), injectors not spraying fuel.