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Section 560 (Engine Control System)
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Pcm Inspection
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Inspection Using An Oscilloscope (Reference)
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OCV Control Signal
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Vehicle Condition
Vehicle Condition
WARNING:
This page is about a different car, the 2007 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
Idle after warm-up
Fig 1: Waveform Graph (OCV Control Signal)
Courtesy of MAZDA MOTORS CORP.