Why is there a gasoline smell after the car stalls?
1 Answers
A strong gasoline smell after starting the car is caused by incomplete combustion of gasoline. When the car starts while cold, the onboard computer will appropriately increase the fuel injection volume based on the intake air temperature and coolant temperature signals. At this time, the engine has not yet reached its normal operating temperature, resulting in poor combustion efficiency. This causes some fuel to be expelled without being fully burned, leading to a strong gasoline smell during cold starts. The following are related explanations: 1. Gasoline smell in winter: This situation is particularly common in winter. The normal operating temperature of the engine is between 80-90 degrees Celsius. Once the engine reaches this temperature, the onboard computer will correspondingly reduce the fuel injection volume. Additionally, at the engine's normal operating temperature, the fuel will be fully burned, and the gasoline smell will disappear. 2. Fault reasons: If the car still has a strong gasoline smell after running for a while, it is likely due to a malfunction. A common issue is insufficient air intake through the throttle, which causes errors in the air flow information, affects the fuel injection volume, increases fuel consumption, and results in a heavier gasoline smell.
