An automobile's engine runs on a particular ratio of oxygen to gasoline. If there is less air than desired, fuel will be left over after combustion, creating a rich mixture that releases pollution via the unburned gas. If there is more air than gas going in, this lean mixture can produce nitrogen oxide pollution. The oxygen sensor is positioned in the exhaust pipe and can detect rich and lean mixtures. "The reason why the engine needs the O2 sensor is because the amount of oxygen that the engine can pull in depends on all sorts of things like the altitude, temperature of the air, the temperature of the engine, the barometric pressure, the load on the engine, etc.," he adds. "When oxygensensors fails, the computer can no longer sense the air/fuel mixture, so it ends up guessing. Your car then performs poorly and it uses more fuel than it needs to.
Technical info:
Automotive exhaust emissions are everyone's concern because we all breathe the same air. Fifty percent of Americans live in areas which exceed national clean air standards. Reducing Catalytic Converter and tailpipe emissions, therefore, is a top priority in the effort to fight air pollution. In 1976, Bosch introduced what would eventually become one of the most important technologies the Bosch oxygen sensors for reducing exhaust emissions: the oxygen sensor. By 1996, Bosch had produced its 100 millionth oxygen sensor. Today, Bosch oxygen sensors are original equipment on a wide variety of European, Asian and domestic vehicles and are the No. 1 best selling brand in the aftermarket. O2 sensors have been standard equipment on passenger car and light truck engines since 1980-81/ Most such vehicles have one or two oxygen sensors (two are typically used on selected V6 and V8 engines starting in the late 80s). Since the introduction of Onboard Diagnostics II (OBD II) in 1995-96, the number of oxygensensors per vehicle has doubled (the extra sensors are used downstream of the Catalytic Converters to monitor its operating efficiency). Yet, as important as oxygen sensors are today, few motorists are even aware of their presence - let alone the key role oxygen sensors play in engine performance and reducing pollution. One survey found that 99.7% of all consumers did not know their vehicle had an oxygen sensor!
Oxygen Sensors must be checked every 35,000 miles to ensure full functionally.
Fuel emissions systems should be checked yearly. And replaced as needed. To increase gas mileage
gas filters,fuel filters,import auto parts,Tune up parts,Fuel injection parts. All must be maintained.
Catalytic Converters must be checked and maintained by a qualified tech.
In the Fuel injection parts market. we believe there is no better product than Bosch o2 sensors and fuel injectors and fuel pumps.We maintain a vast inventory of these and other Bosch products.
Re manufactured units also available