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Zirconium O2 Sensor Testing

Zirconium O2 Sensor Testing. Passing Results Minimum Voltage (Artificially Full Lean) 0V – 175mV Maximum Voltage (Artificially Full Rich) 800mV – 1V Rise Time (Snap Throttle) < / = 100mS (from 175mV – 800mV). RPM. O2S. STFT. IPW. TPS. MAF. = 50mV. = 175mV. = 50mV. = 800 mV.

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Zirconium O2 Sensor Testing

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  1. Zirconium O2 Sensor Testing Passing Results Minimum Voltage (Artificially Full Lean) 0V – 175mV Maximum Voltage (Artificially Full Rich) 800mV – 1V Rise Time (Snap Throttle) < / = 100mS (from 175mV – 800mV)

  2. RPM O2S STFT IPW TPS MAF

  3. = 50mV

  4. = 175mV = 50mV

  5. = 800 mV = 175mV = 50mV

  6. = 800 mV = 175mV Fail! = 50mV

  7. Test Question! • Using a DSO, a technician tests an O2 sensor for “rise time” by snapping the throttle and freezing the frame. The technician has set up the DSO time scale for 200mS per division, with 5 subdivisions each. When measured at the specified voltage levels, the rise time between the cursors was 3 subdivisions. What is the measured time difference, and does this O2 sensor pass the rise time test? The time difference is 120ms and it does not pass the test

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