There are car parts which are not so popular with the ordinary consumers or car
owners, and one of them is the oxygen sensor. If your mechanic tells you that
your oxygen sensor should be replaced because it can no longer work properly,
do you really know what exactly he is talking about? I bet not. To help you, including
others, to know more about this car part, we deemed it necessary to discuss it
Generally, an oxygen sensor is an electronic device that measures the proportion
of oxygen in the gas or liquid that is being analyzed. Oxygen is a very important
element especially in the automotive application of internal combustion. The sensing
element is usually made with a zirconium ceramic bulb coated on both sides with
a thin layer of platinum and comes in both heated and unheated forms. Though oxygen
sensing is also used in some applications, the oxygen sensor is primarily applied
in automotive technology.
Automotive oxygen sensors like the Pontiac oxygen sensor are car parts used to
measure the performance of internal combustion engines in automobiles like those
of the Pontiac. Internal combustion engine is a heat engine in which combustion
occurs in a confined space called a combustion chamber.
Automotive oxygen sensors are also called O2 sensors, lambda probes, lambda sensors,
lambda sonds or EGO for exhaust gas oxygen sensors. These sensors are small sensing
devices inserted into the exhaust system of a petrol engine to measure the volume
of oxygen remaining in the exhaust gas to allow an electronic system to control
the efficiency of the combustion process in the engine.
The oxygen sensor is part of the exhaust system, and in most modern automobiles,
these sensors are attached to the engine's exhaust manifold to know if the air
and gasoline mixture has too much or too little fuel. After which, the information
is being transported to the engine management electronic control unit computer
which adjusts the mixture to give the engine the best possible fuel economy and
lowest possible exhaust emissions.
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