Eclipse Spyder GS-T FWD L4-1997cc 2.0L DOHC Turbo MFI (1997)
Ignition Coil: Oscilloscope Patterns and Waveforms
Standard Wave Pattern Observation Conditions
Standard wave pattern
Wave pattern observation points
Point: Condition of wave pattern build-up section and maximum voltage (Refer to abnormal wave pattern examples 1 and 2.)
Examples of abnormal wave patterns
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Example 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.