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Mazda
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2015
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3 Sport, 4D Hatchback, Automatic Trans
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Repair and Diagnosis
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Engine Control Systems
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Pcm Inspection
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Inspection Using An Oscilloscope (Reference)
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A/F sensor heater control signal
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Vehicle condition
July 1:
So it begins
. Don't worry, this is not in the correct legal jurisdiction!
Vehicle condition
Idle after warm up
Fig 1: A/F Sensor Heater Control Signal Waveform
Courtesy of MAZDA MOTORS CORP.