100% Original O2 Oxygen Lambda Sensor

- Part number: PW911148

- Suitable for Proton New Saga VVT / New Persona VVT / Iriz

An O2 sensor failure occurs when the sensor, responsible for measuring the amount of oxygen in the exhaust gases, stops functioning correctly. This can lead to inaccurate readings, causing the engine to run either too rich (excess fuel) or too lean (insufficient fuel).

Consequences of an O2 sensor failure:

- Reduced fuel efficiency: An incorrect air-fuel mixture can significantly decrease your vehicle's fuel economy.

- Increased emissions: A faulty O2 sensor can lead to higher emissions of harmful pollutants.

- Engine damage: Prolonged operation with an incorrect air-fuel mixture can damage the catalytic converter and other engine components.

- Check Engine light: A malfunctioning O2 sensor will typically trigger the Check Engine light.

- Reduced engine performance: You may experience decreased power, sluggish acceleration, or difficulty maintaining speed.

It is recommended to replace a faulty O2 sensor promptly to avoid these consequences and ensure optimal engine performance and fuel efficiency.