пятница, 16 февраля 2018 г.

Bad O2 sensor readings

Dealing with Bad O2 Sensor Readings

What are O2 sensors?

O2 sensors are oxygen sensors found in nearly every car, originally developed by Volvo in 1976. These sensors are put into place in the exhaust manifold, and are designed to monitor changes in oxygen levels, maintaining and balancing the necessary oxygen balance to affect how much fuel is used and what levels of oxygen are necessary. These nearly constant – by the second – changes take place as you shift, change gears, and “rev” or increase RPM’s while driving. Typically, this occurs around the 2500 RPM area, although can depend on the make and model of your vehicle.

How do O2 sensors work?

O2 sensors use oxygen to "lean out", or enrich the level of fuel mixture going into and out of your engine, in turn creating exhaust or emissions. O2 sensors are not strictly based on this process alone however, and also includes the gauging of engine coolant temperature, air temperature, flow, engine load, and throttle position. Most O2 sensor technology also relies on barometric pressure to determine the appropriate level and consistency of mixing fuel with oxygen.
What’s setting off O2 sensors in my vehicle?

As mentioned above, many variables play a role when it comes to O2 sensor frequency, readings, and functionality along with the computerized portions of your vehicle. While not always the underlying cause, O2 sensors do age and go bad over times – often on the account of extreme weather and exposure to harmful road chemicals. O2 sensors should be changed regularly per your vehicles maintenance schedule located in your manual to optimize performance, fuel efficiency, and longevity of your vehicles O2 sensors.

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