How do you replace fuel injectors on Mazda millenia?

To replace fuel injectors on a Mazda Millenia, begin by disconnecting the negative battery terminal for safety. Remove the intake manifold to access the fuel rail, then detach the fuel lines and unscrew the fuel rail. Carefully pull out the old injectors, install the new ones with new O-rings, and reassemble everything in reverse order, ensuring all connections are secure before reconnecting the battery. It's essential to check for leaks after starting the engine.