SENSORS

Delphi Switching Oxygen Sensors
Delphi Switching Oxygen Sensors with planar element technology
provide stoichiometric measurement of exhaust gases for gasoline
and alternative fuel engine applications to help manufacturers meet
current and future emissions standards.
Delphi Switching Oxygen Sensors include a pumped air reference
feature to prevent air reference contamination. They can be used in
the engine-out position and in a post-converter location for more
accurate engine control and for better exhaust system diagnostics.

Benefits
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Fast light-off time with a low-wattage heater can help reduce
system costs, help reduce cold-start emissions, and help eliminate
the need for other emissions devices.
Pumped air reference prevents air reference contamination.
Industry-leading poison-resistant coating helps improve sensor
durability.
High temperature resistance allows sensor location flexibility and
consistent operation across a wide range of temperatures,
including high engine temperatures. It also helps provide improved
sensor reliability and durability.
Low power consumption reduces the vehicle's electrical energy
requirements.
Robust construction resists thermal shock without cracking.
Demonstrated production flex fuel capability.

Delphi offers Switching Oxygen Sensors with
both "breathable" and "non-breathable"
membranes to suit a variety of customer needs.

Typical Applications
Delphi's Switching Oxygen Sensors can be used for passenger
vehicle and commercial vehicle gasoline and alternative fuel
applications (including ethanol blends E0 to E100) to help
vehicle manufacturers meet current and future emissions
regulations. They can also be used for motorcycles and other
small engine applications.

Performance Advantages
Delphi's Switching Oxygen Sensors offer cost and performance
advantages versus conventional conical sensors including faster
light-off time and a low-wattage heater. They can also help
achieve lower cold-start emissions than conical sensors.
Compared to other switching sensors, Delphi's Switching
Oxygen Sensors offer a pumped air reference and feature an
isolated ground. They also feature industry-leading poisonresistant coatings, waterproofing, and a high-temperature
internal seal to provide robust reliability versus other
switching sensors.
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Delphi's Switching Oxygen Sensor (right) is
designed for use with controllers that have a
pumping current feature. Delphi also offers a
sensor (left) with additional features that
complement controllers without a
pumping feature.

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