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Removal (LS400)

  1. Release fuel pressure. See FUEL SYSTEM PRESSURE RELEASE . Disconnect negative battery cable. Remove engine cover. Remove battery cover and air cleaner inlet. Remove intake air connector. Disconnect accelerator cable. Disconnect EVAP hoses. Disconnect brake booster vacuum hose. Disconnect PCV hose. See Figure.
  2. Disconnect EVAP vacuum switching valve connect. Disconnect noise filter connector. Remove bolts and disconnect engine wire protector, wire clamp bracket and engine wire from intake manifold. Remove pulsation dampers and upper gaskets. See Figure. Place a towel under fuel rail. Slowly loosen pulsation damper. Remove rear fuel line from fuel rails and lower gaskets.
  3. Disconnect clamps from wire clamp bracket on right fuel rail. Disconnect injector connectors. Disconnect engine wiring harness from fuel rail. Disconnect Variable Valve Timing (VVT) sensor connectors. See Figure.
  4. Remove EVAP vacuum switching valve. Remove accelerator cable bracket and engine cover brackets. Remove fuel rail-to-intake manifold nuts. Remove fuel rails and injector assembly. See Figure. Remove spacers. Remove injectors from fuel rail. Remove "O" rings, grommets and insulators from each injectors.
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