what is the function of the downstream oxygen sensor
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O2 Sensors: FYI ANSWER: A downstream oxygen sensor in or behind the catalytic converter works exactly the same as an “upstream” O2 sensor in the exhaust manifold. The sensor produces a voltage that changes when the amount of unburned oxygen in the exhaust changes.
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Catalytic converter The oxygen sensor is the basis of the closed-loop control system on a spark-ignited rich-burn engine; however, it is also used for diagnostics. In vehicles with OBD II, a second oxygen sensor is fitted after the catalytic converter to monitor the O2 levels.
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How does the oxygen sensor in a car work? The reason why the engine needs the oxygen sensor is because the amount of oxygen that the engine can pull in depends on all sorts of things, such as the altitude, the temperature of the air, the temperature of the engine, the barometric pressure, the load on the engine, etc.
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Oxygen Sensors Wideband oxygen sensors (also known as “air / fuel ratio sensors” (AFR or AF), or universal exhaust gas oxygen sensors (UEGO) started appearing in vehicles in the mid 1990s. This type of O2 sensor has the ability to determine an accurate measurement of the air / fuel ratio.
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- The temperature of the water and the atmospheric pressure must to be known in order to calculate ppm (parts per million) of dissolved oxygen. The oxygen probe contains a solution of potassium chloride (KCl) which will absorb oxygen. As more oxygen is diffused into the solution, more current will flow through the cell.
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Oxygen Sensor The advent of the 80's has seen the introduction of another important automobile innovation - the oxygen sensor. This gadget forms part of a vehicle's emissions control system and is also responsible for feeding data to the engine management computer. It does this by checking the exhaust hundreds of times per minute. In a nutshell, the car oxygen sensor helps maintain optimum engine performance and lower a vehicle's smoke emissions. The oxygen sensor is strategically located in the exhaust pipe. As such, it can easily detect the presence of rich and lean mixtures.
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Understanding OBD Monitors O2 (Oxygen) Sensor: The O2 Sensor Monitor watches for the performance of the vehicle’s oxygen sensors. Oxygen sensors are used to fine tune the amount of fuel that is used by the engine. These adjustments are made several times a second and have a direct impact on fuel economy and emissions reductions.
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Pulse oximeters The AEROcheck-FPO11-FCH is a handy fingertip pulse oximeter which is utilized for the measurement of partial oxygen saturation. The device is quick and precise. Being comfortable to use, it can be used anywhere.
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Titania lambda sensor The lambda sensor is fitted into the exhaust pipe before the catalytic converter. The sensor will have 4 electrical connections and it reacts to the oxygen content in the exhaust system and will produce an oscillating voltage between 0.5 volt (lean) to 4.0 volts, or above (rich) when running correctly.
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- Found near the exhaust manifold, your Hyundai Elantra Oxygen Sensor passes oxygen levels present in the engine's exhaust system to the engine computer.The oxygen sensor works in union with a vehicle's data processor to decide whether your fuel vapor heading to the engine needs to be fine-tuned.e stock oxygen sensor parts for most Hyundai models including Sonata, Santa Fe, Accent, Tiburon, Tucson, XG350, Entourage, Genesis Coupe, Veracruz, XG300, Azera, Excel, Genesis, Scoupe and Equus. We stock these Oxygen Sensor brands for the Hyundai Elantra: Bosch, Denso, Walker and NTK.
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WHAT DOES AN OXYGEN SENSOR DO? What is an Oxygen Sensor? The oxygen sensor, also known as a lambda sensor, was developed in the late 1960s by Dr. Gunter Bauman for the Robert Bosch GmbH company. This sensor is an electronic device used to measure the proportional amount of oxygen in a liquid or gas.hat is an Oxygen Sensor? The oxygen sensor, also known as a lambda sensor, was developed in the late 1960s by Dr. Gunter Bauman for the Robert Bosch GmbH company. This sensor is an electronic device used to measure the proportional amount of oxygen in a liquid or gas.
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- it refers to the location of the oxygen (o2) sensors relative to the engine. The upstream sensor is the one closest to the engine. The downstream sensor is furthest from the e … ngine. Think of it as the way a stream of water, or in this case, a stream of exhaust flows....
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- O2 Sensor Locations. Depending on the make, model and engine type, oxygen sensors can be located in a variety of places on your vehicle. Below are some of the more common locations. A traditional V6 or V8 engine typically contains a left and right bank pre-catalytic converter oxygen sensor, as well as a post-catalytic converter oxygen sensor.
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- Alternatively, instead of upstream pressure sensor 52 and downstream pressure sensor 56, the pressure differential measurement system may include a single pressure differential sensor (not shown) configured to measure the difference in pressure between the exhaust flow upstream and downstream of particulate trap 19.
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How To Test The Front Oxygen Sensor With A Multimeter (2.2L GM) TEST 1: Checking The O2 Signal With A Multimeter. As you're already aware, the O2 sensor's job is to measure the amount of oxygen in the exhaust. In nutshell, when the O2 sensor reports an exhaust with a high concentration of oxygen, it produces a low voltage signal (under .5 volts).
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Oxygen Sensor Adjustment - General Information Almost all modern vehicles employ oxygen sensors to tell the vehicle's computer if the air/fuel mixture is too rich or too lean. The computer uses the information from the 02 sensor to determine if more or less fuel should be added to the mix in order to maintain the correct proportion.
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- Step 4 – Install new upstream O2 sensor. Twist the new sensor into place. Use your O2 socket and ratchet extension to tighten, and fully secure the sensor. Reconnect its harness, and then clip the harness to the bracket. Figure 8. Install new sensor, tighten into place, and re-clip harness to the bracket. Figure 9.
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- The Oxygen Sensor, also known as the O2 Sensor is the component responsible for delivering exhaust information to a vehicle's emissions computer. Most late model vehicles will be equipped with both a pre-CAT oxygen sensor and a post-CAT oxygen sensor.
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Pulse Oximeter, the oxygen sensor for your finger. What is it and how does it work? How does a Pulse Oximeter work? A Pulse Oximeter works by shooting light through the area of our body being used for the measurement (lets, assume from now onward that it is a finger) and detecting the amount of light that managed to to through that finger.
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- Email: sensors@alphasense.com - Web: www.alphasense.com. Most galvanic oxygen sensors use a platinum electrode to reduce the oxygen and an. oxidisable lead anode to complete the electrochemical reaction. Sensor lifetime. depends on the availability of lead: the oxygen sensor dies when all the lead has.
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Oxygen Sensors Premium Wideband A/F (O2) Oxygen Sensors. Wideband/Air-Fuel sensors perform the same function as a regular O2 sensor, but they precisely measure the amount oxygen in the exhaust rather than just switching between rich (too much fuel, not enough oxygen) and lean (too much oxygen, not enough fuel).
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- Lambda Sensor. The lambda sensor is also known as the exhaust gas oxygen sensor and is the key sensor in the engine fuel control feedback loop. A computer uses the lambda sensor to balance the fuel-oxygen mixture.The correct reading for fuel mixtures is rich as opposed to lean.he lambda sensor is also known as the exhaust gas oxygen sensor and is the key sensor in the engine fuel control feedback loop.
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HYUNDAI Elantra Oxygen Sensor HYUNDAI Elantra oxygen sensors have a limited service period, replace as recommended in the owner's manual or when other conditions dictate, such as failing an emissions test or an oxygen sensor related diagnostic code from the powertrain control module indicating a faulty oxygen sensor.he oxygen sensor is sometimes referred to as a Lambda sensor on some European cars. Changes in the amount of exhaust gas oxygen result in a voltage change that is monitored by the vehicle's powertrain control module.
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O2 Sensors: FYI The OBD II system monitors converter efficiency by comparing the upstream and downstream oxygen sensor signals. If the converter is doing its job and is reducing the pollutants in the exhaust, the downstream oxygen sensor should show little activity (few lean-to-rich transitions, which are also called “crosscounts”).