July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Wave Form

Fig 1: Front O2 Sensor & Front O2 Heater - Waveform Graph

Courtesy of HYUNDAI MOTOR CO.

Fig 2: Rear O2 Sensor & Rear O2 Heater - Waveform Graph

Courtesy of HYUNDAI MOTOR CO.