OEM 2003 Toyota Matrix Fuel Injector

2003 Toyota Matrix Parts Questions & Experts Answers

• Q: How to Service and Replace the Fuel Injector Assy (2ZZ-GE) on 2003 Toyota Matrix?

  A: The first task before starting Fuel Injector Assy (2ZZ-GE) replacement requires you to stop gasoline from leaks. Start by removing No.2 cylinder head cover through the removal of its 3 bolts and nut. Start by taking off both the ventilation hose No.2 and the alternative ventilation hose from their positions. The engine wire requires complete disconnection done by taking off the bolt and cutting away the 4 fuel injector connectors and the cam position sensor connector. The process requires removal of the EFI fuel pipe clamp followed by disconnecting the fuel tube from the fuel pipe while taking necessary precautions to avoid splashing from fuel pipe line pressure retention. Start by removing the bolt and clamp after which you should retrieve three bolts together with the fuel delivery pipe that contains all four fuel injectors and their fuel tube being mindful of injector safety. Take out the two spacers which exist on the cylinder head. You should pull out the 4 fuel injectors from their position in the fuel delivery pipe for substitution. Apply spindle oil or gasoline with a light coat to new O-rings before placing them on new insulators while keeping away from all engine and brake and gear components. Apply spindle oil or gasoline on the O-ring while carefully inserting the fuel injector into the delivery pipe by rotating it clockwise and counterclockwise without twisting the O-ring. Verify that rotation is smooth after installation. To assemble the fuel delivery pipe sub-system use two spacers to mount on the cylinder head followed by attaching the fuel delivery pipe with four fuel injectors and the fuel tube by installing three bolts which need tightening with Bolt A to 29 N.m (296 kgf.cm, 21 ft.lbf) and Bolt B to 9.0 N.m (92 kgf.cm, 80 in.lbf) while double-checking for proper injector alignment and smooth rotation. Secure the clamp through its bolt then tighten the bolt until it reaches 9.0 N.m (92 kgf.cm, 80 in.lbf) and connect the fuel tube to the fuel pipe while executing proper precautions during the process. After reconnecting the engine wire users need to attach the cam position sensor connector as well as the 4 fuel injector connectors while also installing the bolt at 10 N.m (102 kgf.cm, 7 ft.lbf). Fitting the cylinder head cover No.2 requires installation of its 3 bolts and a nut which should be tightened to 7.0 N.m (71 kgf.cm, 62 in.lbf) while inspecting the system for fuel leakage.