OEM 2006 Scion xB Fuel Injector

2006 Scion xB Fuel Injector Parts Q&A

• Q: How to service and repair the fuel injector on 2006 Scion xB?

  A: The procedure for servicing and fixing fuel injectors begins by removing the circuit opening relay (Marked C/OPN) from the instrument panel junction block to discharge fuel pressure. The engineer starts then stops the engine which leads to switching off the ignition and verifying engine non-start-up. The vehicle requires emptying fuel tank air through the cap removal and negative battery disconnection for a minimum 90-second period to stop Air Bag and seat belt pretensioners from activating. After removing the 4 nuts and No. 2 cylinder head cover, proceed to take out both the ignition coil and cylinder head cover sub-assembly. Disconnect the fuel tube sub-assembly through a combination of Special Service Tool: 09268-21010 along with removing the fuel pipe clamp while cleaning the connector beforehand and wrapping the separated pipe and connector with a plastic bag for protection. The process requires separating the fuel delivery pipe from its sub-assembly through disconnecting 4 fuel injector connectors and removing 3 bolts then carefully extracting the fuel pipe with the 4 fuel injectors while removing the 2 spacers from the cylinder head. You must detach the fuel injectors from their delivery position before removing the 4 O-rings and 4 insulators together with 4 fuel injectors. The installation method requires new insulators for each fuel injector and then you must apply a thin layer of grease or gasoline to the O-rings before positioning them correctly without rotating the parts. The fuel delivery pipe installation requires torquing bolt A to 19 N.m (194 kgf.cm, 14 ft.lbf) while torquing bolt B to 9.0 N.m (92 kgf.cm, 80 in.lbf). During this process, check for smooth rotation of the injectors. Attach the 4 fuel injector connectors before connecting the fuel tube while inspecting for damage and foreign objects and properly aligning the connector to the pipe. Secure the connection well. Place the fuel pipe clamp then attach the cylinder head cover sub-assembly together with the ignition coil. Reconnect the negative battery terminal after you check for fuel leaks and proceed to install the No. 2 cylinder head cover by first tightening nuts marked A to 7.0 N.m (71 kgf.cm, 62 in.lbf) then move to tighten nuts marked B to the same torque.