scion Workshop Repair Guides

Scion Workshop Service and Repair Manuals

Engine Control System - SFI System|Page 267 > < Engine Control System - SFI System|Page 265
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HINT: The wavelength varies in accordance with the engine operating condition.

5. WAVEFORM 5

HINT: In the Data List, the items O2S B1 S2 show the values input to the ECM from the heated oxygen sensor.

6. WAVEFORM 6

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The wavelength becomes shorter as the engine rpm increases.

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The waveforms and amplitudes displayed differ slightly depending on the vehicle condition.

7. WAVEFORM 7

Engine Control System - SFI System|Page 267 > < Engine Control System - SFI System|Page 265