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Jan 6, 2023 · Find out how an O2 sensor works, why they're important for your car, and symptoms of a failing oxygen sensor in this detailed guide.
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An oxygen sensor (or lambda sensor, where lambda refers to air–fuel equivalence ratio, usually denoted by λ) or probe or sond, is an electronic device that measures the proportion of oxygen (O 2) in the gas or liquid being analyzed.
An oxygen sensor is an electronic device that measures the proportion of oxygen in the exhaust gasses exiting an engine. Located in the exhaust system, it provides real-time data to the vehicle’s Engine Control Unit (ECU), which uses this information to adjust the air-fuel mixture for optimal combustion.
Nov 11, 2024 · An oxygen sensor (O2) is a vital part of the fuel and emission-control system. It measures the difference in oxygen in the air on the outside of and inside the exhaust. It reports its finding to the ECU to calculate the exact amount of fuel the injector should pulse into the cylinder to create combustion.
- Andrew Markel
Every new car, and most cars produced after 1980, have an oxygen sensor. The sensor is part of the emissions control system and feeds data to the engine management computer. The goal of the sensor is to help the engine run as efficiently as possible and also to produce as few emissions as possible. A gasoline engine burns gasoline in the ...
Mar 21, 2021 · An oxygen sensor measures how much oxygen is left in the exhaust after combustion. The vehicle’s Engine Control Module (ECM) uses that data to recalculate how much fuel to add to each cylinder. There are two types of sensors: narrow band and wide band.
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What is an oxygen sensor & how does it work?
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Jan 22, 2024 · An electro-galvanic oxygen sensor is a fuel cell based on the oxidation of lead that produces an electrical output proportional to the oxygen level inside the sensor. It is similar to an electrochemical sensor in that it consumes itself over several months as it is exposed to oxygen.
