Attention! See precautions in subsection 6.3.2 before starting work.
Attention! If you think an injector has failed, try cleaning it with an appropriate injector cleaner such as Holts Redex Injector Treatment.
Models "Phase I"
See subsection 6.3.2.11.1.
Do not forget that additional gaskets are installed between the injectors and the mounting plates.
Models "Phase II"
Removing
1. Remove the upper section of the intake manifold following the instructions in pp. 20–25 of subsection 6.3.2.13.
2. Disconnect the vacuum tube from the fuel pressure regulator.
3. Release pressure from the fuel system following the instructions insubsection 6.3.2.6. Then, release the fastening clips and disconnect the fuel supply hose and the return pipe hose from the left side of the fuel manifold (indicated by arrows (models with 1.6L engine)).
4. Release the fixing clips and disconnect the connectors from the four injectors.
5. Loosen and remove the fuel manifold mounting bolts, then carefully remove the fuel manifold and injectors from the intake manifold and remove it from the engine compartment.
6. Remove the gaskets installed between the fuel manifold and the intake manifold and remove the injector seals from the intake manifold.
7. Unscrew the two mounting screws and remove the mounting plate and gasket, noting how it was installed, from the corresponding injector.
8. Squeeze out the injector and remove the sealing rings. Remove the rest of the injectors in the same way.
9. Discard seals and o-rings; when installing, you must use new ones.
Installation
1. Installation is carried out in the reverse order of removal. When installing, pay attention to the following points.
2. Before installing the injectors, install new O-rings on the injectors (indicated by arrows).
3. Lubricate the O-rings with engine oil to facilitate installation, then install the injectors on the fuel rail. Check that the gaskets are properly installed, then install the mounting plates and tighten the mounting screws.
4. Install new injector seals to the intake manifold and install gaskets between the fuel manifold and the intake manifold. Install the fuel manifold to the intake manifold and install the mounting bolts.
5. In a diagonal order, starting from the middle, tighten the mounting bolts to the required stage 1 torque. Then, again, in the same order, tighten the bolts to the required stage 2 torque.
6. Install the upper section of the intake manifold following the instructions in subsection 6.3.2.13.
7. Check that all hoses are properly connected and, if necessary, secure them with hose clamps.
8. Adjust the accelerator cable following the instructions in subsection 6.3.2.3.
9. After installation is complete, start the engine and check for fuel leaks.