A car may smell like fuel when it's cold outside due to a few reasons, including incomplete combustion in the engine, which can lead to unburned fuel escaping through the exhaust. Additionally, cold temperatures can cause fuel vapors to condense and leak from the fuel system, particularly if there are any cracks or loose connections. Lastly, if the engine is struggling to start in cold weather, it may be using more fuel than usual, contributing to the smell. If the odor persists, it's advisable to have a mechanic inspect the vehicle for potential leaks or issues.
It could be a bad fuel pressure regulator.
Car exhaust can smell like rotten eggs when the fuel has a lot of sulphur in it.
look for a leaky fuel line
because your engine is going to break down or when you start the car if the whether is cold, it makes it smell like gas
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.
Smelling a gasoline smell when the weather is cold could mean that the gas is set too rich. It would also be possible that the carburetor needs to be checked for a fuel leak.
Typically this is caused when the fuel is burned uncleanly and the sulfur in gas makes it smell
It has a fuel system leak, can be fuel line, etc.( liquid leak) or (fuses) faulty gas cap/fuel emission system leak.
exhaust leak or fuel leak
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.
Check your fuel cap or gas tank for leaks, or maybe the gas lines.
It has a fuel system leak, can be fuel line, etc.( liquid leak) or (fuses) faulty gas cap/fuel emission system leak.