How do you cure fuel leak-back to tank on d4d 2.2liter avensis?

To cure fuel leak-back in a D4D 2.2-liter Avensis, start by inspecting the fuel lines and connections for any signs of wear or damage, as these can cause leaks. Replace any faulty components, including fuel injectors, seals, or fuel line connections. Additionally, consider checking the fuel filter for clogs that might contribute to pressure issues. If the problem persists, it may be necessary to consult a professional mechanic for a more thorough diagnosis.