Signal Waveform & Data

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Fig 1: Screen Display - HO2S (S2) Signal Waveform

Courtesy of KIA MOTORS AMERICA, INC.

The amplitude of the signal output of the rear HO2S (S2)_DOWN is small compared to the front HO2S (S2)_DOWN because the rear HO2S (S2)_DOWN detects emission gas purified by the catalytic converter.

This is the normal signal waveform of the rear HO2S (S2)_DOWN at idle.