OEM 2009 Toyota Yaris Fuel Injector

2009 Toyota Yaris Fuel Injector Parts Q&A

• Q: How to install the fuel injector assembly on 2009 Toyota Yaris?

  A: The installation process requires the application of light coating with gasoline or spindle oil to new O-rings before installing them onto fuel injectors while simultaneously applying oil to the fuel delivery pipe contact surfaces alongside the injector O-ring. The fuel injector should then be gently twisted left and right when connecting it to the delivery pipe, checking for smooth movement post-installation. Any non-performing O-rings must be replaced. Turn the fuel injector with slow movements to left and right positions before mounting it onto the fuel delivery pipe while avoiding O-ring twisting and then ensure smooth movement of injectors before changing broken O-rings. Position the new cylinder head injector vibration insulators before placing 2 delivery pipe spacers No. 1 into correct orientation. The fuel delivery pipe sub-assembly must be installed with the attached 4 fuel injectors before installing 3 bolts provisionally while avoiding injector drops and validating injector movement after installation. The bolts should be tightened to 19 Nm (194 kgf-cm, 14 ft-lbf) torque and 9.0 Nm (92 kgf-cm, 80 in-lbf). The connection procedure starts when inserting the fuel tube connector to the fuel delivery pipe until a click is heard while inspecting the seal area for scratches or foreign contaminants before using the fuel pipe clamp. The installation of the cylinder head cover sub-assembly requires Toyota Genuine Seal Packing Black or equivalent material and insertion within three minutes before waiting at least two hours without starting the engine. Secure the cover with 9 bolts followed by 2 nuts with 2 seal washers by applying torque of 10 Nm (102 kgf-cm, 7.0 ft-lbf) using the specified sequence, then install the wire harness bracket using a bolt torque of 13 Nm (133 kgf-cm, 9.6 ft-lbf), connect the connector along with the wire harness clamp, and the engine wire harness, and tighten the fuel injector connectors. The installation requires attaching ventilation hose No. 2 to the ventilation system and both connecting ignition coil No. 1 while attaching the cable to the negative battery terminal with a torque set to 5.4 Nm (55 kgf-cm, 48 in-lbf). As the last step inspect for any fuel or engine oil leakages.