What are the consequences of a three-cylinder misfire in an engine?

[SanElaina]

When a three-cylinder misfire occurs in an engine, it can lead to unstable engine operation, reduced power performance, and poorer fuel economy. Additionally, the incomplete combustion of the air-fuel mixture continues to burn in the exhaust system, increasing the burden on the three-way catalytic converter and potentially causing damage due to high temperatures. This results in exhaust emissions that fail to meet standards, exacerbating environmental pollution. Below are some common engine faults: 1. Starter damage: Includes insufficient battery charge, blown circuit fuses, or open starter circuits, leading to engine failure to start. 2. Unstable RPM during operation: The engine's RPM fluctuates significantly during operation, often due to air leaks in the intake system. 3. Slow RPM response during rapid acceleration: The engine's RPM changes sluggishly during rapid acceleration, which may be caused by low ignition voltage or delayed ignition timing.