What Causes the Smell of Gasoline When Starting a Car?

[DiSimon]

Reasons for the smell of gasoline when starting a car are as follows: 1. Insufficient air intake by the car's throttle, leading to incorrect air flow information. 2. Excessive carbon buildup in the cylinder combustion chamber and pistons, resulting in insufficient cylinder pressure. 3. Excessive carbon deposits inside the engine, causing poor atomization of the air-fuel mixture. 4. Leakage in the gasoline pipe, forming sludge at the pipe connections, with the odor entering the car through the air conditioning system. Solutions for the smell of gasoline when starting a car include: 1. Replace the rubber hoses of the gasoline purification carbon canister. 2. Tighten or repair the gasoline pipe connections. 3. Repair or reassemble the fuel pump.