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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. [1] It was developed by Robert Bosch GmbH during the late 1960s under the supervision of Günter Bauman. [1]
Oxygen sensors monitor the exhaust oxygen content before and after the catalytic converter, and the engine control unit uses this information to adjust the fuel injection so as to prevent the first (NO x reduction) catalyst from becoming oxygen-loaded, while simultaneously ensuring the second (HC and CO oxidation) catalyst is sufficiently ...
The systems have the option for a lambda sensor, enabling their use with catalytic converter-equipped vehicles. This feedback system allows the system to analyse exhaust emissions so that fuel and spark can be continually optimised to minimise emissions.
Air–fuel ratio (AFR) is the mass ratio of air to a solid, liquid, or gaseous fuel present in a combustion process. The combustion may take place in a controlled manner such as in an internal combustion engine or industrial furnace, or may result in an explosion (e.g., a dust explosion).
The main drawback of lean-burning is that a complex catalytic converter system is required to reduce NOx emissions. Lean-burn engines do not work well with modern 3-way catalytic converter —which require a pollutant balance at the exhaust port so they can carry out oxidation and reduction reactions—so most modern engines tend to cruise and ...
Because the value from a given sensor is always stored at the same location in RAM, these sensor values can be read if the memory location is known. The 14CUX is capable of storing diagnostic trouble codes in a 32-byte segment of its internal memory that is maintained (even while vehicle ignition is off) by applying 5VDC ( regulated down from ...
Officials in California are working to remove a racist term towards Native American women in more than 30 locations in California, according to the state Natural Resources Agency.. The removal of ...
In 1988 the C20XE was introduced, and was fitted with a catalyst and oxygen sensor in the exhaust. This was due to new emission standards, which forced manufacturers to equip their cars with a catalytic converter and a lambda or oxygen sensor – this requirement permitted the fitment of the Bosch Motronic 2.5 engine management system. Engine ...
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