Check Engine Light came ON. Later on that day noticed a strong raw gasoline smell when exiting the car. Checked the fuel lines and around the gas tank but could not see any leak, but the strong raw gasoline smell keeps coming back every time the engine is ON. The smell seems to be coming from on top of the fuel tank. Checked the fuel tank access under the rear passenger seats but all is dry there and no visible leaks. Car is at my mechanic's now waiting for service.