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Waveform 9
Waveform 9
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Igniter IGT signal (from ECM to igniter)
Igniter IGF signal (from igniter to ECM)
TERMINAL SPECIFICATIONS
ECM Terminal Name
Between IGT (1 to 4) and E1
Between IGF and E1
Tester Ranges
2 V/DIV, 20 msec./DIV
Conditions
Idling
HINT:
The wavelength becomes shorter as the engine rpm increases.
Fig 1: Identifying Waveform 9
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