When the antipollution fault light turns on, it's important to address it promptly to ensure your vehicle remains environmentally compliant and performs optimally. Here are a few common reasons why the antipollution fault may occur in the Peugeot 307 SW 79KW:
1. Faulty Oxygen Sensor: The oxygen sensor monitors the amount of oxygen in the exhaust gases to help regulate the fuel mixture and ensure efficient combustion. A faulty oxygen sensor can lead to incorrect fuel-air ratios and increased emissions.
2. Catalytic Converter Issue: The catalytic converter is responsible for converting harmful pollutants in the exhaust gases into less harmful substances. A damaged or inefficient catalytic converter can result in higher levels of pollutants and trigger the antipollution fault light.
3. EGR Valve Malfunction: The EGR (exhaust gas recirculation) valve helps reduce nitrogen oxide (NOx) emissions by recirculating a portion of the exhaust gases back into the engine. If the EGR valve is faulty or stuck, it can affect the emissions output and activate the antipollution fault.
4. Faulty Fuel Injector: Fuel injectors are responsible for delivering the correct amount of fuel to the engine. If one or more fuel injectors are malfunctioning, it can cause incomplete combustion and increased emissions, leading to the antipollution fault.
5. Diesel Particulate Filter (DPF) Issues: Diesel vehicles may have a DPF to trap and remove particulate matter from the exhaust gases. A clogged or faulty DPF can restrict exhaust flow and cause the antipollution fault to appear.
6. Turbocharger Problems: In turbocharged engines, a malfunctioning turbocharger or issues related to its control system can affect the air and fuel mixture, leading to increased emissions and the activation of the antipollution fault.
It's recommended to have your Peugeot 307 SW diagnosed by a qualified mechanic or technician who can identify the specific source of the antipollution fault and perform the necessary repairs or replacements. Ignoring the antipollution fault can lead to increased emissions, decreased fuel efficiency, and potential issues passing emissions inspections.
