How to Determine if an Engine Has a Misfiring Cylinder?

[MayaMarie]

Methods to determine engine misfiring: 1. Remove the ignition wires one by one. If the shaking worsens, it is not a misfiring cylinder; if there is no change, that cylinder is misfiring. 2. Generally, the fuel injector will still spray fuel even when a cylinder is misfiring. In severe cases, this can cause the catalytic converter to overheat and become damaged. Therefore, when performing the ignition wire removal test for misfiring, the duration should not be too long to avoid causing new faults. 3. Engine misfiring can lead to increased fuel consumption, black smoke emission, loss of power, reduced horsepower, inability to accelerate, severe shaking, increased driving noise, and poses significant safety risks, especially on uphill starts. The engine load increases in misfiring vehicles, making the body shake more noticeably, which can easily lead to sudden stalling.