Installation (RX300)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2002 Lexus SC 430, 2002 Lexus RX 300, 2002 Lexus LX 470, 2002 Lexus LS 430, and 2002 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
- Install NEW "O" rings, insulators and grommets on injectors. Apply a light coat of gasoline to fuel injector "O" rings and fuel rails injector openings. Using a twisting motion, push injectors onto fuel rail. Ensure injectors are fully seated. Ensure injector connectors are positioned outward.
- Place 4 fuel rail spacers in position on intake manifold. Apply a light coat of gasoline to intake manifold injector ports. Assemble fuel rails, fuel lines and injectors in position on intake manifold. Temporarily install 4 injector rail bolts. Temporarily install fuel line-to-intake manifold bolt. Ensure fuel injectors rotate smoothly. If injectors do not rotate smoothly, "O" rings were installed incorrectly. Replace "O" rings.
- Ensure injector connectors are positioned outward. Tighten fuel rail-to-intake manifold bolts to specification. See TORQUE SPECIFICATIONS . Tighten fuel line-to-intake manifold bolt. Align alignment marks (White paint) on fuel line. See Fig 1. Install fuel line clamp to engine compartment fuel filter until a click is heard. Ensure fuel line clamp is installed securely.
- Connect air assist hoses to intake manifold. Install air assist pipe. Connect injector connectors. Install NEW intake chamber assembly gasket. Install air cleaner hose with resonator. To complete installation, reverse removal procedure. Tighten all bolts to specification. See TORQUE SPECIFICATIONS . Turn ignition on. Start engine and check fuel system for leaks.