1. Disconnect the ground wire from the battery terminal.
2. Disconnect hoses of giving and removal of fuel with clips.
3. 1.7-/1.8-lit. engine: Disconnect the pin connection of the explosive combustion sensor.
4. Unscrew the fastening corners of the suction pipe assembly on the cylinder head.
5. Unscrew the fastening nuts (SW 7) suction pipe assembly on the intake manifold.
6. Carefully lift the suction pipe assembly away from the intake manifold and turn it to the side. When doing this, be careful not to damage the gasket.
7. 16 valve engine: remove the air hoses as well as the under vacuum lines from the cylinder head cover and accordingly remove the suction pipe assembly from the intake manifold.
8. Loosen the wire harness clamps in the suction pipe assembly.
9. All engines: Remove the 2 nuts and carefully remove the fuel distribution pipe with injectors.
10. Disconnect the multi-pin injector blocks.
11. Remove the nozzles from the distribution pipeline.
12. When installing, remember that when replacing even one nozzle, new o-rings must be installed in order to reduce the likelihood of new problems. Lubricate the injectors with Vaseline or clean engine oil before installing them.
13. After installing the nozzles, carry out a leak test before installing the remaining parts.