The car runs rough while idling and you smell the fumes inside car?

If your car runs rough while idling and you smell fumes inside, it could indicate a few potential issues. A likely cause is a malfunctioning fuel system, such as a faulty fuel injector or a clogged air filter, which can lead to an improper air-fuel mixture. Additionally, exhaust leaks or issues with the cabin air system could be allowing fumes to enter the vehicle. It's advisable to have the car inspected by a professional mechanic to diagnose and resolve the problem promptly.