Why does my 2004 Honda Accord smell of exhaust fume when you start the car?

A smell of exhaust fumes when starting your 2004 Honda Accord could indicate a few potential issues. It may be due to a leak in the exhaust system, such as a cracked manifold or damaged gaskets, allowing fumes to escape. Alternatively, a malfunctioning catalytic converter or issues with the fuel system could be contributing to the smell. It's important to have the vehicle inspected by a professional to identify and address the problem, as exhaust fumes can be hazardous.