Vadodara, Gujarat. Ahmedabad, Gujarat. NH - 48, Balitha, Vapi, Dist. Valsad, Gujarat. Mumbai, Maharashtra. Bharuch, Gujarat. Commercial Belt, Greater Noida, Dist. Gautam Budh Nagar Office No. Gautam Budh Nagar, Uttar Pradesh. Verified Supplier. Jhansi, Uttar Pradesh. Guindy, Chennai No.
Chennai, Tamil Nadu. Ghansoli, Navi Mumbai, Dist. Thane Tarachand Complex, Flat No. Thane, Maharashtra. Chennai No. Yamuna Nagar, Haryana. This detects whether the control sensor upstream of the cat is functioning to optimum effect. The control unit can then calculate how to compensate for this. In more recent engines, the exhaust system has an oxygen sensor upstream and downstream of the catalytic converter. The exhaust gases flow over the electrode side of the sensor element, while the other is in contact with the outside air.
The outside air acts as a reference here for measurement of the residual oxygen content. The system has been simplified by the latest generation of oxygen sensors, in which the reference value measured against the outside air is replaced by a reference voltage.
Today there are basically two different types of sensor: the binary and the universal exhaust gas oxygen UEGO sensor. It compares the residual oxygen content in the exhaust with the oxygen level of the ambient air and identifies the transition from a rich mixture lack of air to a lean mixture excess air and vice versa.
It has a greater measuring range and is also suitable for use in diesel and gas engines. Nowadays heated oxygen sensors are used to ensure the oxygen sensors reach operating temperature more quickly and can thus intervene earlier in the emission control process.
Heated HEGO sensors no longer always have to be installed close to the engine. It measures the proportion of oxygen in your engine. The internal combustion in the vehicle works by burning gasoline. To properly burn gasoline, most cars need a ratio of 14 grams of oxygen for every gram of gas. The oxygen sensor helps keep that balance in check. The sensor is typically located on the passenger side of the car, mounted directly onto the exhaust pipe near the catalytic converter.
When the sensor goes bad, your car may lose up to 40 percent of its fuel efficiency, because your car will use too much gas. When a car has too much air, the engine is said to be running lean.
A lean engine causes jerking or a hesitation in acceleration. A rich engine mixture causes the vehicle to run hot and creates pollution. Both conditions can cause possible engine damage and poor fuel mileage. The O2 sensor keeps your emissions in check. Your vehicle may have one, two, three or four sensors, depending on the engine type, make and model. Too little fuel produces nitrogen-oxide pollutants. The sensor signal helps keep the mixture just right.
Wide band O2 sensors have an additional O2 pumping cell to regulate the amount of oxygen present in the sensing element. Since the oxygen sensor is in the exhaust stream, it can become contaminated. Common sources of contamination include an excessively rich fuel mixture condition or oil blow-by in an older engine and engine coolant being burnt in the combustion chamber as a result of an engine gasket leak. It is also exposed to extremely high temperatures, and like any component can wear over time.
For this reason, there are a few tell-tale signs to look out for:. Before you replace the sensor, you need to diagnose the problem. Confirm the fault code by selecting live data and comparing the value of the suspect faulty sensor to that of a known working sensor.
Other tooling or equipment may be required to determine if it is the actual sensor and not the wiring that is causing the problem. How does an oxygen sensor work?
Why do O2 sensors fail? For this reason, there are a few tell-tale signs to look out for: Check engine light: whilst the check engine light can come on for many reasons, it is normally down to an emission related issue. Poor fuel economy: a faulty oxygen sensor will upset the air to fuel mixture resulting in increased fuel usage.
Rough engine idle or misfiring: since the oxygen sensor output help control engine timing, combustion intervals and air to fuel ration, a faulty sensor can cause the vehicle to run rough. Sluggish engine performance.
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