One problem related to emission control has been reported for the 2004 Honda Accord. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Honda Accord based on all problems reported for the 2004 Accord.
Carbon monoxide is getting into the vehicle while driving. This causes dizziness and headaches. Vehicle had been to the dealer, who was unable to locate the cause of the problem.