Description

Keep your Mitsubishi Lancer running efficiently with this high-quality aftermarket Top Oxygen Sensor, also known as the Bank 1 Oxygen Sensor, Upstream O2 Sensor, or Lambda Sensor.

This sensor is installed on the top section of the exhaust extractor manifold, ahead of the catalytic converter, where it continuously monitors the oxygen content in the exhaust gases. The engine control unit (ECU) uses this information to adjust the air-fuel mixture for optimal fuel economy, engine performance, and emissions control.

A faulty oxygen sensor can cause poor fuel economy, rough idling, reduced engine performance, increased emissions, and trigger the check engine light. This direct-fit replacement is designed to restore proper engine operation and reliable sensor feedback.

Features:

• High-quality aftermarket replacement
• Direct-fit installation
• 4-wire oxygen sensor design
• Bank 1 (Upstream) position
• Located on top of the exhaust manifold/extractor
• Helps maintain proper fuel-air ratio
• Improves fuel efficiency and engine performance
• Reliable and durable construction

Fitment

Sensor Location

Common Names

• Top Oxygen Sensor
• Bank 1 Oxygen Sensor
• Upstream O2 Sensor
• Front Oxygen Sensor
• Lambda Sensor
• Air Fuel Ratio Sensor