We release the pressure in the fuel system (see Replacing the fuel filter). Disconnect the engine control system wiring harness connectors from the phase sensor (see Removal the phase sensor), absolute air pressure sensor in the intake manifold (see Removal the absolute air pressure sensor in the intake manifold) and the idle speed control unit and throttle position sensor (see Removal the throttle assembly).
By pressing the spring clip of the wiring harness connector with a screwdriver…
…we remove the block from the injector connector.
Similarly, we disconnect the engine management system wiring harness connectors from the other injectors.
We move the wiring harness away from the fuel rail.
We remove the tip of the purge valve tube from the intake manifold fitting and move the tube away from the ramp.
By pressing the fuel pipe tip retainer…
…we remove the tube tip from the ramp branch pipe.
Using a 12 mm open-end wrench, unscrew the two nuts, and using a 10 mm wrench, unscrew the two bolts securing the intake manifold bracket…
…and remove the bracket.
Using a 12 mm socket, unscrew the two bolts securing the fuel rail to the intake manifold.
We move the fuel rail along the axes of the injectors and, overcoming the resistance of the injector sealing rings..
…we remove the injectors from the holes in the intake manifold.
We remove the fuel rail with injectors.
To remove the injector…
…we pry the retainer with a slotted screwdriver…
…and we take it off.
We remove the injector tip from the fuel rail pipe.
Prying with a thin slotted screwdriver..
…we remove the injector sealing rings.
We remove the other injectors in the same way. We replace the injector sealing rings with new ones. Before installing the injectors in the ramp and intake manifold, we apply a thin layer of motor oil to the sealing rings.
Assembly and installation of the fuel rail with injectors is carried out in the reverse order.