You are not alone if you have just seen a “Depollution System Fault” warning on your Peugeot dashboard. Many Peugeot owners face this issue and can be very frightening. The source of a Peugeot car’s “Depollution system fault” warning is most likely a defective oxygen sensor or mass airflow sensor. In this article, we will tell you the possible solutions to this problem.
What Does Anti-Pollution Fault Mean On A Peugeot?
The error code “Depollution System Faulty” indicates a problem with the engine management system. The Peugeot vehicles are equipped with an internal self-diagnostic system known as the Depollution System. This system checks the engine and detects any issues that could impact the vehicle’s performance or safety. When the system identifies a problem with the vehicle, it often displays a “Depollution System Faulty” warning.
6 Causes Behind the Depollution System Faulty on Peugeot
Here are some reasons for the “Depollution System Faulty” on Peugeot:
1. Ignition Coils and Spark Plugs
If any of these components fail, the “Depollution System Fault” warning will show up on your dashboard. Signs of faulty coils or spark plugs include engine failure, rough idling, vehicle shaking, and power loss when accelerating. If you haven’t maintained the Peugeot in a while, you may need to replace plugs and coils.
2. Crank Sensor Failure
Crank sensors measure the speed of a car engine’s crankshaft. Crank sensors may malfunction over time, resulting in problems such as a car not starting or running rough. If your crank sensor fails, the “Depollution System Faulty” error will appear on your dashboard.
3. Clogged Fuel Filter
A clogged fuel filter is another common cause of this issue on a Peugeot. The fuel filter might become blocked with dust and particles from your petrol, stopping the car’s engine from running and starting properly.
4. Dirty Fuel Injectors
Fuel injectors play a crucial role in your Peugeot engine by delivering the right amount of fuel. Dirty fuel injectors can result in low mileage, acceleration hesitation, and a common “Depollution system fault” warning.
5. Catalytic Converter Clog
The catalytic converter is responsible for removing harmful particles from your exhaust by converting them into gases like carbon dioxide, water vapor, and nitrous oxide.
6. Bad Oxygen Sensors
Oxygen sensors are responsible for determining whether the exhaust gas is lean or rich. When any of those sensors don’t work, the car assumes that there is no oxygen in the exhaust and starts to run rich.
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How to Fix Depollution System Faulty Peugeot?
Here are some solutions for the “Depollution system faulty” message on Peugeot 207,308, 307, and 407:
1. Check the Oxygen Sensor
A malfunctioning sensor is often the cause of a depollution system fault message. The sensor checks the amount of oxygen, and if it fails, it might disrupt the engine’s fuel mixture. A defective oxygen sensor can be replaced by a skilled mechanic.
2. Examine the Catalytic Converter
A blocked or defective catalytic converter is another potential problem. The catalytic converter converts harmful gases into less damaging ones before they exit the vehicle’s exhaust. A blocked catalytic converter could reduce engine performance and efficiency. A damaged catalytic converter can be inspected and replaced by a trained mechanic.
3. Examine the EGR Valve
To reduce emissions, the EGR circulates exhaust gases into the engine. If an EGR valve becomes blocked or not working properly, it can affect engine performance and fuel efficiency.
4. Check the Particulate Matter Filter
Particulate filters in diesel engines capture harmful particles in the exhaust. This filter can become clogged, resulting in poor performance of the engine and fuel effectiveness. A defective particle filter can be inspected and replaced by a mechanic. After resolving the problems that caused the code to appear, it should be removed from your dashboard.
5. Replace Your Turbocharger
If the de-pollution system failure indicator appears on your Peugeot’s dashboard, a malfunctioning high-pressure pump might be the cause. This pump not only sends fuel to the engine but also generates the force to push the fuel back. Like many other components in your vehicle, the high-pressure gasoline pump may become inactive after several years of use.
When the de-pollution system failure notice displays on the screen, use the signs listed above to determine the root cause. If unsure about the actual cause, consult with your technician. The professional must be able to accurately determine and fix the problem. read this article carefully to know the possible causes and solutions to fix this issue.