Now Playing: O2 or Oxygen Sensor Signal Operation
- Description: Explains how to read the O2 sensor signal on the OBD-II scanner, Scope-1 or Scan-1. The O2 sensor generates a signal. A Scope-1 or automotive oscilloscope is then used to read the signal and an analysis is made. The proper analysis of the O2 sensor will determine its general condition or if a replacement is needed. This video also explain the O2 sensor operation and other ways to test it.
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