What Causes Emission Control System Failure?

[GabrielaDella]

Emission control system failure can lead to increased fuel consumption and reduced engine lifespan, among other issues. Below are detailed explanations of the related impacts: Increased fuel consumption: It will raise fuel usage, and prolonged operation with poor combustion efficiency can result in excessive carbon buildup. Reduced lifespan: This poses safety risks during vehicle operation and shortens the engine's service life. During use, issues in the fuel supply or ignition systems may cause engine overheating or backfiring, leading to catalytic converter substrate sintering, flaking, and increased exhaust backpressure. Without proper mixture correction references, the ECU cannot control fuel injection accurately, which over time will negatively affect engine longevity.