Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › 05 Honda Civic – Carbon Monoxide Inside the Car › Reply To: 05 Honda Civic – Carbon Monoxide Inside the Car March 17, 2021 at 10:26 pm #989485 Kia LParticipant When you said over saturation of carbon monoxide, do you mean carbon monoxide is more than what is naturally mixed? does it mean something is malfunctioning?