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Mazda
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2004
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6 i, 4D Hatchback, Standard
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System (L3)
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Pcm Inspection
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Inspection Using An Oscilloscope (Reference)
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HO2S (Front) Heater Control Signal
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Vehicle condition
Vehicle condition
Idle after warm up (engine speed approx. 700 RPM, no load, P/S off, A/C off)
Fig 1: Inspecting HO2S (Front) Heater Control Signal Using Oscilloscope
Courtesy of MAZDA MOTORS CORP.
Courtesy of MAZDA MOTORS CORP.