What are the causes of Peugeot 308sw emission failure?

[LeDylan]

Peugeot 308 emission control system failure causes include: substandard gasoline quality leading to catalytic converter poisoning, and damage to the oxygen sensor in the catalytic system. The impacts of engine emission control system failure are: 1. Affecting other systems: The mixture correction loses its basis, causing inaccurate fuel injection control by the computer, which over time affects the engine, catalytic converter, oxygen sensor, etc. You can clearly feel abnormalities in the engine's power, fuel consumption, and idle speed. 2. Performance deterioration: Due to the use of fuel or lubricating oil, the catalytic converter may become poisoned and its activity reduced, affecting the catalytic conversion efficiency. Sulfur, phosphorus complexes, and deposits may form inside the catalytic converter, leading to deterioration in vehicle performance, resulting in reduced power performance, increased fuel consumption, and worsened emissions.