Nozzle
The nozzle is non-separable. When removing the nozzle, be careful not to damage the electrical connector and spray nozzle.
Attention! Do not clean or wash the nozzle with gasoline or other detergents.
Replace nozzle seals with new ones. If there are deposits on the nozzle filters (large diameter purge filter, small diameter intake filter) blow them out with compressed air and flush the fuel tank and fuel lines.
When installing the nozzle, apply sealant to the threads of the holder fixing screw.
Fuel pressure regulator
The spring under the regulator cover is in a compressed state, so be careful when removing the screws securing the cover.
After removing the regulator, check the condition of the valve seat, use a magnifying glass if necessary. The nest should not have chips, dents and surface irregularities. If any of these defects are present, replace the entire fuel supply housing of the central injection unit.
It is recommended to replace the valve diaphragm after each disassembly with a new one. Apply sealant to the screw threads of the regulator cover during assembly.
Attention! When installing the fuel pressure regulator, do not distort the diaphragm.
Fuel supply housing for central injection unit
When assembling the central injection unit, it is recommended to replace the gasket between the fuel supply and throttle bodies with a new one. Align the notches in the gasket with the holes in the throttle body. Apply sealant to the threads of the housing fixing screws.
Throttle position sensor
When installing the sensor, put the throttle in the closed position and, turning the sensor counterclockwise, align the flats of the roller with the sensor drive. Tighten the fastening screws.
Attention! Do not clean or wash the throttle position sensor and idle speed control with gasoline or other detergents.
Idle speed controller
Replace gaskets with new ones. The regulator has a cone valve with a diameter of 10 mm. If replacement is required, use a new valve of the correct model.
Before installing the regulator to the throttle body, check the distance from the mounting flange to the end point of the regulator valve. If the valve is extended too far, damage to the regulator may result.
The distance must be less than 23 mm. If the new regulator has more than 23 mm, then you can use your hand, shaking the valve from side to side, to press it into the regulator.
With a regulator that has been in operation, it is not allowed to push the valve in manually, so as not to damage the regulator. For this purpose, it is necessary to use a diagnostic tool or a special monitor.
After installing the idle speed controller and the central injection unit, connect the diagnostic tool to the diagnostic block and instruct the electronic control unit to reset the idle speed controller parameters.
Throttle body
When assembling the central fuel injection unit, it is recommended to replace the sealing gasket of the fuel supply housing with a new one.
Clean the surfaces of the throttle body and vacuum tube housing of the old gasket material. Replace the gasket with a new one.