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["OE Base Sensor", "B1S2"]
The oxygen sensor monitors the oxygen content of the exhaust gases and sends feedback to the ECM, which uses this information to fine-tune the fuel mixture for efficient combustion and low emissions. Signs of failure include: a check engine light with an O2 sensor code, poor fuel economy, a rough idle, or a vehicle that fails an emissions test. Replace a worn oxygen sensor to restore proper closed-loop fuel control and fuel efficiency.
Walker, part of Tenneco, manufactures exhaust systems, catalytic converters, and mufflers. Known for comprehensive coverage and reliable performance, Walker delivers cost-effective exhaust solutions.
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