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LS 430
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SFI System - Diagnosis
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Terminals Of ECM
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Waveform 12
Waveform 12
Knock sensor
Fig 1: Terminal Voltage Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
HINT:
The wavelength becomes shorter as engine RPM increases.
The waveforms and amplitudes displayed differ slightly depending on the vehicle.
Fig 2: Identifying Waveform 12
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002