Most modern oxygen sensors have a 100,000-mile life expectancy, and when your oxygen sensor gets a little old and worn, you'll notice a drop in fuel economy.In addition to enabling more efficient fuel injection, the oxygen sensor acts as an emissions control to reduce the amount of unburnt fuel (pollution in the form of air-borne hydrocarbons) and oxides of nitrogen from entering the atmosphere. Worn or failing oxygen sensors can cause excessive gasoline consumption, elevated exhaust emissions, accelerated catalytic converter damage along with engine performance problems such as surging and hesitation.
More extreme cases of oxygen sensor malfunction can lead to drivability issues and eventually trigger other indicators of the problem such as a Check Engine light. Acting in a closed loop feedback control for fuel-injected engines, oxygen sensors signal the amount of oxygen in the vehicle's exhaust.
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Thursday, April 23, 2009
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Its looks good but it needs more clarifications. Thank you for your post.
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