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Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
ISBN: 9781133612315

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BuyFindarrow_forward

Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
ISBN: 9781133612315
Textbook Problem

Which of the following statements about zirconium oxygen sensors is not true?

  1. The normal operating range for an O2S is between 0 and 1 volt.

  • If the sensors voltage toggles between 0 volts and 500 millivolts, it is operating normally.
  • The voltage signal from an upstream O2S should have seven cross counts within 5 seconds with the engine running without a load at 2,500 rpm.
  • Engine control systems monitor the activity of the O2S and store a code when the sensors output is not within the desired range.
  • To determine

    Choose the incorrect option.

    Explanation

    Zirconium sensor consists of an element of zirconium, a plate of platinum, and a heater. The zirconium element is exposed to the atmosphere from the side and the other side faces the exhaust gas pipe. The side facing atmosphere is connected to the wires of the sensor. The voltage generated is conducted by platinum plates.

    Zirconium dioxide is attached with platinum electrode from both the sides. Voltage signal will be reduced if there is a contamination or corrosion present in the platinum electrode and zirconium elements...

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