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 February 21, 2021 at 1:25 pm #988988 Kia LParticipant Thank you for replying. To look for black sooth, I have to disconnect all pipes and possibly clean the pipes. Is it right? I wasn’t sure if there is a way to flush out.