mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

Fuel Injector|Service and Repair > < Component Tests and General Diagnostics|Page 2077
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Fuel Injector: Oscilloscope Patterns and Waveforms

Manufacturer Specific Pattern

Fuel Injection Signal

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PCM terminal
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No.1: 75 (+) <-> 103(-)

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No.2: 101 (+) <-> 103(-)

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No.3: 74 (+) <-> 103(-)

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No.4: 100 (+) <-> 103(-)

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No.5: 73 (+) <-> 103(-)

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No.6: 99 (+) <-> 103(-)

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Oscilloscope setting: 2 V/DIV (Y), 10 ms/DIV (X), DC range

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Vehicle condition: Idle after warm up

Fuel Injector|Service and Repair > < Component Tests and General Diagnostics|Page 2077