Bosch Wideband Oxygen Sensor

The Bosch Wideband Oxygen Sensor line includes wideband air/fuel ratio sensors, also called wideband O2 sensors or A/F sensors. They measure the oxygen content in the exhaust stream over a broad range of air/fuel mixtures. The engine control unit uses this signal to fine-tune fuel delivery, which helps the engine run efficiently and keep emissions low.

Key Features:

• Wideband sensing technology that gives a precise, continuous air/fuel ratio reading, in contrast to a conventional narrowband switching sensor
• Heated sensing element that reaches operating temperature quickly for faster closed-loop fuel control
• Designed to meet OE-type form, fit and function for dependable performance
• Built for durability in the high-heat, harsh environment of the exhaust system
• Backed by Bosch's long history as an original equipment supplier of engine management and emissions components

A failing oxygen sensor can cause poor fuel economy, rough running, a check engine light and higher emissions. Replacing it with a Bosch wideband sensor helps restore correct air/fuel ratio feedback to the engine computer. Installation typically uses a standard oxygen sensor socket, and the sensor connects through its plug-in harness connector.