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The Oxygen Sensor is an important attribute of the emission control in vehicles, used to maintain the Challenger engines high performance levels while at the same time ensuring clean emissions. This semiconductor reduces the amount of hydrogen in the merging exhaust gases and thus communicates to the ECU the amount of oxygen in the exhaust and enables the ECU to correct the A/F ratio. This dynamic adjustment is relevant as both rich and lean mixtures are harmful to the engine performance, as well as its life cycle. Oxygen sensors that have been incorporated in Dodge Challenger models comprise of zirconia and titania sensors. There are zirconia sensors which are manufactured in both narrow band and wide band, and they are particularly useful in the control of fuel mixtures. On the other hand, titania sensors work as they modify resistance as opposed to the generation of voltage. Anyhow, the Oxygen Sensor when malfunctioning leads to high emissions and fuel consumption thus needs replacement for the optimal performance of the vehicle.