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Home >> Hyundai >> 2007 >> Sonata SE >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3.3L) (2 Of 2) >> DTC Troubleshooting Procedures >> DTC P2A00 O2 Sensor Not Ready (Bank 1 / Sensor 1) >> Signal Waveform And Data

Signal Waveform And Data

Fig 1: Identifying Signal Waveform
G04891587Courtesy of HYUNDAI MOTOR CO.

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.

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