Why Is There a Strong Gasoline Smell When Starting a Cold Engine?

[MacKaleb]

When starting a cold engine, the smell of gasoline may be due to an oil leak or a malfunctioning fuel injector. If the fuel injector is faulty, gasoline cannot be fully atomized during a cold start, leading to incomplete combustion and resulting in exhaust gases with a strong gasoline odor. Other possible scenarios include: 1. During winter cold starts, the engine may have difficulty igniting due to the cold weather, causing some gasoline to exit through the exhaust pipe, which is a normal phenomenon. 2. After the engine is turned off, some gasoline may not have fully burned, and the evaporating gasoline fumes can create a gasoline smell, which is also normal.