PREMIUM PRE CATALYTIC OXYGEN O2 SENSOR TO SUIT SUBARU FORESTER SF S10 SG S11 EJ205 TURBO 2.0L F4 FROM 05/2000

Premium Pre Catalytic Oxygen Sensor – Upstream Exhaust Feedback for Engine Management

A pre catalytic oxygen sensor, also known as an upstream O2 sensor, is positioned before the catalytic converter in the exhaust system. It monitors oxygen content in exhaust gases leaving the engine and sends this information to the ECU, helping the fuel injection system adjust the air fuel ratio during normal operation.

When sensor readings become slow, incorrect, or unstable, the vehicle may experience increased fuel use, poor drivability, check engine light warnings, or emission related faults. A Premium pre catalytic oxygen sensor provides a practical replacement option for maintaining correct exhaust feedback before the catalytic converter.

Why Choose Premium Pre Catalytic Oxygen Sensor?

• Manufactured using proven OE technology.
• Helps the ECU receive air fuel reference signals from the upstream exhaust position.
• Supports fuel injection adjustment based on oxygen levels in exhaust gases.
• Designed with corrosion resistant construction for exhaust system conditions.
• Suitable for replacing a worn or faulty pre catalytic sensor.
• Practical choice for emission system servicing and diagnostic repair work.

Choose Premium pre catalytic oxygen sensor for a trusted replacement solution focused on accurate upstream exhaust monitoring.

This pre-cat oxygen sensor suits Subaru vehicles fitted with EJ205 and EJ207 Turbo F4 engines.

Specifications:

• Type: Zirconia
• Number of wires: 4

Contents:

• 1 X Pre catalytic oxygen sensor

Vehicle Fitment Guide

Notes:

• Please verify that your oxygen sensor matches the dimensions of the one in this listing prior to purchase. If you are unsure, please contact us for further assistance.
• The image is for illustrative purposes only.