Signal Waveform And Data

Fig 1: Signal Waveform Graph

Courtesy of KIA MOTORS AMERICA, INC.

After warming-up, Releasing accelerator pedal suddenly around 4000 RPM the HO2S signal reading will be lower than 200mV resulting from Fuel cut-off. Conversely, sudden depressing accelerator pedal HO2S signal reading will be around 0.6V -1.0V. At idle, HO2S signal will be switching between lean (below 0.48V) to rich (above 0.48V) normally.