What is causing the strong gas smell in 96 geo prizm when filled to full?

A strong gas smell in a 1996 Geo Prizm when filled to full could be due to several issues, such as a leaking fuel line, a faulty fuel injector, or a damaged fuel tank. Additionally, a malfunctioning fuel pressure regulator or an improperly sealed gas cap may contribute to gas vapors escaping. It's important to address this issue promptly, as fuel leaks can pose a fire hazard and need to be inspected by a mechanic.