Oxygen Sensorss in Lincoln Mark VIII vehicles workout as an airtight mechanism located in the flow of the engine exhaust, it helps to keep track of the % volumes of unburned oxygen present in the exhaust gasses and hence is instrumental in modulating the air fuel mixture mixture to achieve optimal combustion. It produces a voltage signal proportional to oxygen concentration so as to enable the engine control computer to enrich or lean fuel injector timing. This feedback mechanism makes the engine have a closed loop to improve on the efficiency of the catalytic converter. Standard Lincoln Mark VIII cars may use zirconium dioxide based oxygen sensors in either upstream or downstream form. The upper sensor gives constant information for the air-fuel mixture while the second one checks the performance of catalytic converter. It turns out that these sensors can become clogged over time by contaminants and this results to high emissions and low fuel consumption. In some recent models, air/fuel ratio sensors may be used, with the wider range of measurement than that of the standard oxygen sensors.
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