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Feedback fuel-air-ratio control
A feature of a computer-controlled fuel system. By using a sensor to measure the oxygen content of the engine's exhaust, the system keeps the fuel-air ratio very close to the proportion for chemically perfect combustion. Such tight control of the fuel-air ratio is mandatory for the proper operation of three-way catalysts.
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- Part of Speech: noun
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- Industry/Domain: Automotive
- Category: Automobile
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