Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › 2004 Honda Accord V6 Catalytic Converters Burn Out › Reply To: 2004 Honda Accord V6 Catalytic Converters Burn Out May 21, 2021 at 7:44 pm #990665 Casey CParticipant I would think something like burning oil is causing the cat problem…..is your oil low when its replaced for an oil change? Otherwise I cant think if anything….mpg seem okay or poor?