Q: How to remove and reinstall fuel injectors and Fuel Rail for Lexus ES350,Toyota Camry and 2007 through 2015 Toyota Avalon?
A: Release fuel pressure and disconnect the battery. Remove engine covers, cowl assembly, and air filter housing. Disconnect injector connectors and fuel line, then remove the fuel rail and injectors. Store them in a labeled container. If reusing injectors, replace grommets and O-rings. Remove the fuel rail and injectors as a unit. To reinstall, switch the removal steps going from the final step to the beginning step. Tighten the fuel rail bolts.