There might be a fuel leakage! Check the car porch floor for stains. You can also pop the hood and look closely for any moist areas especially near or under tubes or pipes carrying fuel.
i had a fuel leak
exhaust leak or a possible fuel line leak
Car exhaust can smell like rotten eggs when the fuel has a lot of sulphur in it.
If you smell gasoline inside your car while you're idling or driving, you probably have a fuel leak somewhere under the hood. If you only smell it while idling, it is probably leaking somewhere between the fuel tank and the engine - wind passing through the grill pushes the smell out behind the vehicle instead of into the cabin. There are several different places fuel can leak from. A leaky fuel line or fuel filter would be the most likely sources, but occasionally fuel tanks can leak from damage or seals. Either of these would be reason to get your vehicle to a mechanic as there is a huge potential for fire. If you only ever smelled it once, it may have come from some other vehicle or a fuel station.
look for a leaky fuel line
If the fuel injectors are dry then the 1998 Honda Civic may have a gas leak. The car should be inspected, even a pin hole leak can lead to a fatal accident.
If a car begins to smell like rotten eggs and then starts acting like it has bad gas, it may have been filled with the wrong type of fuel. This smell is common when diesel fuel is burned.
that depends on size of engine
If the car dies while idling, the timing might be off. Other causes can include a clogged fuel filter or a bad spark plug.
Effectively all the fuel that it burns while idling. You are getting 0 miles per gallon while idling.
Typically this is caused when the fuel is burned uncleanly and the sulfur in gas makes it smell
There can be many reasons why a car surges while idling. Some of these reasons are the computer could be dying, or the fuel injector are giving the engine too much gas.