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Air/Fuel Ratio Sensor Voltage & Current

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Published on May 29, 2011

Take a look Air/Fuel Ratio Sensor* Voltage & Current vs. RPM & Short Fuel Trim by use Toyota Techstream Lite diagnostic Software, at at Idle, Acceleration, and Deceleration of Corolla.

* New Planar Wide Range A/F Ratio Sensor. A second generation it Sensor was developed to meet more stringent emission regulations. This A/F Sensor reaches operating temperature faster that the previous (aka Cup Element) A/F sensor. This allows the ECM to go into closed loop vuel control faster when the engine is cold reducing cold start emission.
The planar AFS has the same detecting range and signal characteristics as the previous cup element. But heater element has higher resistance!
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