What Are the Symptoms of a Faulty Oxygen Sensor?
1 Answers
Oxygen sensor failure manifests in the following ways: Increased Fuel Consumption: Carbon buildup on the oxygen sensor can cause abnormal signal output, leading to an imbalance in the engine's air-fuel mixture ratio, which increases fuel consumption. Increased Pollutant Emissions: The vehicle may fail the annual inspection due to excessive tailpipe emissions. Although the three-way catalytic converter can purify exhaust gases, its capacity is limited. If the oxygen sensor malfunctions, incomplete combustion in the engine can result in higher pollutant emissions. Black Smoke Emission: Abnormal operation of the oxygen sensor disrupts the air-fuel ratio, causing black smoke to be emitted.