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 May 3, 2021 at 1:13 pm #990379 Sam AlaimoParticipant Hey, I know this is kind of old, but did you see anymore CO in the car? Besides for the leaks you fixed, there is a possibility that the exhaust could come through a bad trunk seal when sitting at idle. Hope it is all good now!