What Causes Engine Misfire in Cars?

[ONora]

Below are the related causes of engine misfire in cars: 1. Main manifestations of engine misfire: The primary symptom is when one or multiple cylinders fail to operate or function improperly, resulting in cylinder misfire. 2. Ignition system faults: Such as incorrect ignition timing, abnormal spark plug gap, carbon buildup or breakdown, high-voltage wire leakage, open or short circuits in ignition coils, and faults in ignition modules or wiring. 3. Fuel supply system faults: Including excessively low or high fuel pressure, open or short circuits in fuel injector coils, mechanical sticking, etc. 4. Intake system faults: Such as clogged air filters or air leaks in the intake system. 5. Insufficient cylinder compression: Caused by faults in the valve train, poor sealing between pistons, piston rings and cylinder walls, or damaged cylinder head gaskets.