Within the exhaust system, which element is located before the catalytic converter to measure oxygen?

Question

DentroTest · Accepted Answer

The correct answer is the Lambda sensor (or oxygen sensor). This sensor is located in the exhaust pipe, just before the catalytic converter (modern vehicles may also have one after). Its function is to measure the oxygen concentration in the combustion gases and send this information to the electronic control unit (ECU). With this data, the engine regulates the air-fuel mixture to be optimal, reducing fuel consumption and pollution. The other options ('Sonda automovilística' and 'Sonda america') are fictitious terms that do not exist in mechanics.

Within the exhaust system, which element is located before the catalytic converter to measure oxygen?

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