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Mazda
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2001
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MX-5 Miata L4-1.8L DOHC
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Repair and Diagnosis
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Powertrain Management
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Ignition System
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Testing and Inspection
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Oscilloscope Patterns and Waveforms
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IGT Control Signal
IGT Control Signal
IGT control signal
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PCM terminal:
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3F (+) <-> 4A (-)
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3I (+) <-> 4A (-)
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Oscilloscope setting:
1.0 V
/DIV(Y),
50 ms
/DIV(X), DC range
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Vehicle condition:ldle after warm-up