How do you install fuel injectors on a 1993 Lexus GS 300?

To install fuel injectors on a 1993 Lexus GS 300, first, disconnect the negative battery terminal and relieve fuel pressure by removing the fuel pump fuse and running the engine until it stalls. Next, remove the intake manifold to access the fuel rail. Disconnect the fuel rail from the engine, remove the old injectors, and replace them with new ones, ensuring proper O-ring placement. Finally, reassemble everything in reverse order, reconnect the battery, and check for leaks.