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Oscilloscope Patterns and Waveforms
Inspection Using An Oscilloscope (Reference) (California emission regulation applicable ATX model)Ignition coil signal -
PCM terminals
-
No.1 cylinder: 102 (+) - 26 (-)
-
No.2 cylinder: 78 (+) - 26 (-)
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No.3 cylinder: 103 (+) - 26 (-)
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No.4 cylinder: 104 (+) - 26 (-)
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Oscilloscope setting:
2.5V/DIV (Y),
20 ms/DIV (X), DC range
-
Vehicle condition: Idle after warm up (no load)