OEM 2006 Toyota Prius Fuel Injector

2006 Toyota Prius Parts Questions & Experts Answers

• Q: How to remove and install the fuel injector assembly on 2006 Toyota Prius?

  A: The process requires discharging fuel system pressure by removing the integration relay (unit C: C/OPN relay) from the engine room junction block followed by engine startup until stopping and turning off the power switch. The process starts by stopping the engine from starting followed by opening the fuel tank cap to vent air while disconnecting the negative (-) battery cable terminal that needs at least 90 seconds idle time for Air Bag prevention. The maintenance process requires removal of the windshield wiper motor and link together with the front outer cowl top panel subassembly which can be accessed by disconnecting the No. 2 engine room relay block and unfastening wire harness clamps and bolts. Additionally the air cleaner assembly and brake master cylinder reservoir sub-assembly removal needs disconnecting the brake fluid level switch connector and extracting bolts. Detach the reservoir bracket through the removal of the No. 2 fuel vapor feed hose and its connector clamp and wire harness clamp as well as the bracket's bolts. Amateurs should start the cylinder head cover sub-assembly removal process by removing wire harness clamps while disconnecting fuel injector connectors along with ignition coil connectors before taking off the bolts and the cover. After removing the clamp on the No. 1 fuel pipe you should pull out the fuel tube connector until you see no dirt or scratches. Disconnect and remove the fuel delivery pipe together with the 4 fuel injectors before pulling out the injectors. When installing new O-rings and the fuel delivery pipe surface use a light coat of spindle oil or gasoline before carefully installing the injectors without damaging the O-rings and verifying injector smooth rotation. Begin with the installation of new insulators together with delivery pipe spacers. After you install the fuel delivery pipe with attach the injectors temporarily tighten bolts while checking for smooth injector movement before a final torque tightening at 19 N.m for bolt A and 9.0 N.m for bolt B. Finally, connect the fuel tube with the delivery pipe and install the No. 1 fuel pipe clamp. The service technician needs to reinstall the cylinder head cover sub-assembly along with reservoir bracket and brake master cylinder reservoir and air cleaner assembly and front outer cowl top panel subassembly while torquing all bolts to specified values. Install the windshield wiper motor while connecting the link and then reestablish the negative battery terminal before checking for fuel leakage and running initialization procedures because some systems need it after battery reconnection.