We remove the fuel rail to replace and check the operation of the injectors and when performing troubleshooting work related to the operation of the fuel system.

Preparing the car for work.

Disconnect the negative battery terminal.

Removing the receiver (see Removing the receiver and intake manifold of the VAZ-2112 engine).

Close the intake manifold opening with plugs.

Disconnect the vacuum hose from the fuel pressure regulator.

How to remove the fuel rail and VAZ-2112 engine regulatorHow to remove the fuel rail and regulator engine VAZ-2112

Use a Phillips screwdriver to loosen the crankcase ventilation hose clamp

Disconnect the hose from the pipe of the cylinder head cover.

How to remove the fuel rail and VAZ-2112 engine regulatorHow to remove the fuel rail and regulator engine VAZ-2112

Using a 10 key, we unscrew the bolt securing the guide tube of the oil level indicator.

Remove the guide tube.

How to remove the fuel rail and VAZ-2112 engine regulatorHow to remove the fuel rail and regulator engine VAZ-2112

Disconnect the fuel rail connector.

Using two 17 wrenches, disconnect the rail fuel pipes from the fuel supply and return hoses, releasing the fuel pressure (the fuel return hose and pipe are marked with blue paint).

How to remove the fuel rail and VAZ-2112 engine regulatorHow to remove the fuel rail and regulator engine VAZ-2112

Use a Phillips screwdriver to unscrew the screw of the fuel pipe mounting bracket and remove it.

How to remove the fuel rail and VAZ-2112 engine regulatorHow to remove the fuel rail and regulator engine VAZ-2112

Using a 5 hexagon wrench, unscrew the two screws securing the fuel rail and remove it complete with injectors and fuel pressure regulator.

How to remove the fuel rail and VAZ-2112 engine regulatorHow to remove the fuel rail and regulator engine VAZ-2112

Using a 24 wrench, unscrew the nut securing the fuel return pipe to the pressure regulator and remove the pipe.

How to remove the fuel rail and VAZ-2112 engine regulatorHow to remove the fuel rail and regulator engine VAZ-2112

Using a 5 hexagon, unscrew the two screws securing the fuel pressure regulator to the rail.

Move the pressure plate of the fuel supply pipe along the ramp and remove the pipe.

How to remove the fuel rail and engine regulator VAZ-2112

Swinging, we take out the fuel pressure regulator from the rail.

We assemble and install the fuel rail with the pressure regulator in the reverse order.

If necessary, replace the sealing rings of the fuel pipes with new ones.

How to remove the fuel rail and VAZ-2112 engine regulator

We replace the sealing rings of the injectors with new ones and lubricate them with engine oil.

We tighten the screws for fastening the pressure regulator and the ramp with a torque of 9–13 Nm.

Tighten the union nuts of the fuel pipes with a torque of 20–34 Nm.