Your vehicle's computer attempts to create the perfect air to fuel ratio to improve efficiency. This translates into low consumption and little pollution, wasting the least amount of fuel.
We are talking about a stoichiometric proportion that is directly related to the Lambda factor, determining a mixture made up of 14.7 parts of air to 1 part of fuel, this in the case of gasoline, for other fuels the factor is different.
The person responsible for verifying the mixture is the Oxygen Sensor, also called Lambda Sensor, which, when making contact with the exhaust gases, sends an electrical signal to the ECU indicating the amount of O2 present.
If there is too much oxygen left over, fuel is wasted and if there is not enough oxygen, power is lost.
Clean the oxygen sensor every 10,000 km and replace it every 150,000 km.
When the oxygen sensor fails, a bad mixture is generated, presenting symptoms such as loss of power, increased fuel consumption, unstable idle, gray or black smoke from the exhaust.
Негізгі бет Oxygen Sensor or Lambda Probe: operation, failures, causes and solutions
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