Removal (GS430, LS430 & SC430)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 Lexus SC 430, 2003 Lexus RX 300, 2003 Lexus LX 470, 2003 Lexus LS 430, and 2003 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
- Release fuel system pressure. See FUEL SYSTEM PRESSURE RELEASE . Remove engine cover. Remove intake air connector pipe located between throttle body and air cleaner assembly. Remove EVAP vacuum switching valve from upper intake manifold. See Fig 1. Remove PCV hose from upper intake manifold. Remove EVAP vacuum hose from EVAP vacuum switching valve. Remove air inlet hose from air tube.
- Remove No. 2 engine cover bracket from No. 1 engine hanger. See Figure. Remove No. 3 engine cover bracket from upper intake manifold.
- Remove bolts and disconnect engine wiring harness protector from upper intake manifold. See Figure and Figure . Place a towel under fuel line. Slowly loosen fuel pressure pulsation damper. Remove fuel pressure pulsation dampers and gaskets.
- Remove ACIS vacuum switching valve from upper intake manifold. Disconnect fuel injector connectors. Remove fuel rail mounting nuts. See Fig 1. Remove fuel rails, injectors and spacers. Remove No. 5, 6, 7 and 8 fuel injector protective covers. Remove "O" rings, grommets and insulators from each injector.