Measuring condition

After warming-up
At idling

Fig 1: Engine Control Module Input/Output Waveform
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Fig 2: Engine Control Module Input/Output Signal (1 Of 4)

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Fig 3: Engine Control Module Input/Output Signal (2 Of 4)

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Fig 4: Engine Control Module Input/Output Signal (3 Of 4)

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Fig 5: Engine Control Module Input/Output Signal (4 Of 4)

Courtesy of SUBARU OF AMERICA, INC.