Remove injectors for inspection or replacement

Relieve the fuel pressure in the fuel system.

Turn off the ignition and remove the "negative" terminal of the battery.

Disconnect the auxiliary air regulator connector.

Remove the air supply hose and disconnect the throttle cable from the throttle body.

Removing and installing the ZMZ-406 injector

Removing and installing the ZMZ-406 injector

Use a screwdriver to loosen the clamp of the lower (outlet) hose of the idle speed regulator.

Using a screwdriver, loosening the clamp, remove the hose of the crankcase ventilation system.

Removing and installing the ZMZ-406 injector

Removing and installing the ZMZ-406 injector

Loosen the clamp, remove the vacuum brake booster hose.

Using a screwdriver, loosening the clamp, remove the fuel pressure regulator hose

Removing and installing the ZMZ-406 injector

Removing and installing the ZMZ-406 injector

Using the “13” key, unscrew the nut that secures the tip of the “ground” wire to the first intake manifold stud

Similarly, disconnect the wire from the last intake manifold stud.

Then, having unscrewed the remaining nuts of the intake manifold studs with the “13” wrench, remove the receiver.

Removing and installing the ZMZ-406 injector

Removing and installing the ZMZ-406 injector

Loosening the clamp, remove the supply hose from the fuel rail fitting.

Loosen the clamp, remove the crankcase ventilation hose from the idle system pipe.

Removing and installing the ZMZ-406 injector

Removing and installing the ZMZ-406 injector

Loosen the clamp and remove the drain hose from the fuel pressure regulator fitting.

Using the “10” key, unscrew the two bolts securing the fuel rail to the intake manifold and remove the rail

Removing and installing the ZMZ-406 injector

Prying off the spring latch of the block with an awl, disconnect the connector from the nozzle.

Remove the nozzle from the manifold.

Install the nozzle in reverse order.