Jeep Oxygen Sensors

Written by Jeremy Horelick
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Some Jeep oxygen sensors follow different design specs than sensors placed in other types of cars. All in all, there are five distinct kinds of sensors, each with subtle engineering differences, and the rarest of these, the Titania sensor, is found in a few Jeep models. What exactly distinguishes a Titania sensor from a traditional "thimble-style" sensor?

Thimble sensors simply emit a range of voltage readings that correspond with the air-fuel ratio as measured in the exhaust manifold. Titania sensors, by contrast, alter their electrical resistance in response to mixture fluctuations. The system's electronic control unit then looks for changes in voltage emission rates that correspond with the unit's resistance. Only a handful of vehicles are built to do this, but many Jeeps fall under this banner.

More Common Types of Jeep Oxygen Sensors

Your Jeep's oxygen sensors are more likely to employ a "planar" design, which offers a distinct advantage: direct measurement of your cylinders' air-fuel ratios. No longer do sensing mechanisms rely on the switching mechanism that persisted in automaking for decades. Rather, planar sensors emit signals that correspond in direct proportion to changing air-fuel mixes.

What does this mean for you, the Jeep owner? Thanks to a more precise barometer, your Jeep's internal computer can now add or subtract specific quantities of air and fuel to help maintain the ideal 14.7:1 ratio. In practical terms, that translates to better gas mileage, better overall engine efficiency, and less pollution.


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