2. Check the oxygen sensors. The oxygen sensors help to monitor the amount of oxygen in the exhaust gas. If the oxygen sensors are faulty, they can send incorrect signals to the engine control unit (ECU), which can cause the engine to run rich or lean, leading to an anti-pollution fault.
3. Check the catalytic converter. The catalytic converter helps to reduce emissions by converting harmful pollutants into less harmful substances. If the catalytic converter is faulty, it can cause the engine to run poorly and emit excessive pollutants, leading to an anti-pollution fault.
4. Check the fuel injectors. The fuel injectors spray fuel into the engine cylinders. If the fuel injectors are faulty, they can cause the engine to run rich or lean, leading to an anti-pollution fault.
5. Check the turbocharger. The turbocharger helps to increase the engine's power by compressing the air that enters the engine. If the turbocharger is faulty, it can cause the engine to run poorly and emit excessive pollutants, leading to an anti-pollution fault.
If you are unable to fix the anti-pollution fault yourself, you should take your car to a qualified mechanic.
