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Home >> Mazda >> 2007 >> MX-5 Miata L4-2.0L >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Engine >> Tune-up and Engine Performance Checks >> Ignition Timing >> Testing and Inspection >> Oscilloscope Patterns and Waveforms
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Oscilloscope Patterns and Waveforms

Ignition timing signals




- PCM terminals
- IGT1 (No.1): 2BA (+)-Negative battery terminal(-)
- IGT2 (No.2): 2AW (+)-Negative battery terminal(-)
- IGT3 (No.3): 2AX (+)-Negative battery terminal(-)
- IGT4 (No.4): 2AT (+)-Negative battery terminal(-)

- Oscilloscope setting: 2 V/DIV (Y), 50 minutes/DIV (X), DC range
- Vehicle condition: Idle after warm-up
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