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Why do exhaust catalysts influence fuel composition?

April 26, 2017catalysts composition exhaust FUEL influence

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Why do exhaust catalysts influence fuel composition?

1 Answer

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Modern adaptive learning engine management systems control the combustion stoichiometry by monitoring various ambient and engine parameters, including exhaust gas recirculation rates, the air flow sensor, and exhaust oxygen sensor outputs, This closed loop system using the oxygen sensor can compensate for changes in fuel content and air density. The oxygen sensor is also known as the lambda sensor, because the stoichiometric mass Air/Fuel ratio is known as lambda.