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Examples Of Abnormal Wave Patterns

  1. Wave pattern during engine cranking. Cause of problem: Open-circuit in ignition primary circuit. Wave pattern characteristics: Top-right part of the build-up section cannot be seen, and voltage value is approximately 2V too low.
  2. Wave pattern during engine cranking. Cause of problem: Malfunction in ignition power transistor. Wave pattern characteristics: Power voltape results when the ignition power transistor is ON.
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