When To Replace Automotive Oxygen Sensors
Automotive oxygen sensors work together with your Engine Management Computer (ECU) to help your vehicle maintain optimum operation and performance.
There are likely several oxygen sensors installed in your vehicle's exhaust system. Oxygen sensors, also known as lambda sensors, are measuring devices for determining the oxygen content in your engine's exhaust. The oxygen sensor operates by continuously comparing the oxygen content in the exhaust gas with the surrounding air. It uses that difference to generate a signal, then sent to the ECU, which adjusts the fuel flow at the fuel injectors.
A properly operating O2 sensor allows the ECU to maintain the correct air/fuel ratio to receive the maximum performance and mileage out of your vehicle, while also reducing emissions. Therefore, a faulty oxygen sensor can cost you money and performance. If your oxygen sensor is not working properly, your engine's ECU resorts to guessing how much fuel to send to the fuel injectors. This will cause your engine to run rich if too much fuel is sent, wasting gas and reducing mileage. Or your engine will run lean if not enough fuel is available, which produces excess nitrogen-oxide pollution and may also cause engine damage.
So how do you know if your 02 sensors are working properly? Oxygen sensors that completely fail tend to do so instantaneously, usually due to contamination. A failed oxygen sensor will usually cause your check engine light to come on. Without a code reader, there are tests you can perform to assess an auto oxygen sensors performance.
However, most sensors gradually degrade in performance and slowly start to send inaccurate reports to the ECU. Therefore, independent mechanics suggest that, even if your check engine light hasn't come on, sensors be replaced every 8 years, or 100,000 miles. - 21396
There are likely several oxygen sensors installed in your vehicle's exhaust system. Oxygen sensors, also known as lambda sensors, are measuring devices for determining the oxygen content in your engine's exhaust. The oxygen sensor operates by continuously comparing the oxygen content in the exhaust gas with the surrounding air. It uses that difference to generate a signal, then sent to the ECU, which adjusts the fuel flow at the fuel injectors.
A properly operating O2 sensor allows the ECU to maintain the correct air/fuel ratio to receive the maximum performance and mileage out of your vehicle, while also reducing emissions. Therefore, a faulty oxygen sensor can cost you money and performance. If your oxygen sensor is not working properly, your engine's ECU resorts to guessing how much fuel to send to the fuel injectors. This will cause your engine to run rich if too much fuel is sent, wasting gas and reducing mileage. Or your engine will run lean if not enough fuel is available, which produces excess nitrogen-oxide pollution and may also cause engine damage.
So how do you know if your 02 sensors are working properly? Oxygen sensors that completely fail tend to do so instantaneously, usually due to contamination. A failed oxygen sensor will usually cause your check engine light to come on. Without a code reader, there are tests you can perform to assess an auto oxygen sensors performance.
However, most sensors gradually degrade in performance and slowly start to send inaccurate reports to the ECU. Therefore, independent mechanics suggest that, even if your check engine light hasn't come on, sensors be replaced every 8 years, or 100,000 miles. - 21396
About the Author:
OxygenSensorsForLess.com provides instruction on how to test an oxygen sensors performance. OxygenSensorsForLess.com carries every automotive o2 sensor, air/fuel ratio sensor and wide band oxygen sensor made by Denso, NGK/NTK, and Bosch, usually shipping the same day. For warehouse prices on auto sensors with a home shopping convenience, visit OxygenSensorsForLess.com, a SparkPlugs.com company.
posted by X - Men @ 1:40 AM
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