How to Detect Engine Misfire in a Car?

[Aaron]

To detect engine misfire in a car, observe whether the engine's vibration amplitude increases, accompanied by abnormal sounds, weak acceleration, and noticeable shaking of the exhaust pipe. There will be a distinct intermittent sensation during exhaust emissions, and the vibration amplitude may decrease when pressing the throttle in neutral gear. Severe oil content in the exhaust due to misfire far exceeds standards, and the three-way catalytic converter must burn the oil-laden exhaust, inevitably accelerating the converter's degradation. Engine misfire refers to insufficient power caused by engine failure, which shortens the lubrication oil's service cycle and may lead to sudden stalling, high fuel consumption, black smoke emission, and lack of power. The primary causes of engine misfire stem from the ignition system and fuel injection system.