Cars VAZ-21044 with a fuel injection system A 1.7-liter engine with a central fuel injection system is installed on a part of the manufactured VAZ-21044 cars. In this system, fuel is injected by a single nozzle into a...
Catalytic converter Converter 1 - ceramic block with catalysts The toxic components of exhaust gases are hydrocarbons unburned fuel), carbon monoxide and nitric oxide. To convert these compounds into...
Electronic control unit Scheme of the injection system 1 - fuel tank; 2 - electric fuel pump with fuel level sensor; 3 - supply line; 4 - drain line; 5 - fuel filter; 6 - inlet pipe with electric heater;...
Sensors of the electronic control unit Central injection unit 1 - fuel pressure regulator; 2 - nozzle; 3 - fuel supply fitting; 4 - throttle position sensor; 5 - fuel outlet to the tank; 6 – adsorber purge pipe; 7 – a...
Power system — general information Scheme of the fuel pressure regulator 1 - pressure regulator diaphragm; 2 - spring; 3 - pressure regulator valve; 4 - nozzle; A - fuel supply channel; B - fuel drain channel...
Ignition system — general information The ignition system does not use a traditional distributor and ignition coil. Ignition module 7 is used here (see subsection 12.13 ), consisting of two ignition coils and high...
Gasoline vapor recovery system The system uses the method of trapping vapors with a carbon adsorber installed in the engine compartment. When the engine is not running, gasoline vapors from the separator are...
Operation of the central fuel injection system The amount of fuel supplied by the nozzle is regulated by an electrical impulse signal from the electronic control unit (ECU). It monitors data on the state of the engine,...
Diagnostics of malfunctions of system of injection of fuel This is only a summary of the diagnosis of the injection system using a warning lamp "CHECK ENGINE". Diagnostics using special devices and diagnostic cards is described in detail...
Reading fault codes of the injection system Diagnostic block A - contact connected to ground; B - diagnostic contact for signaling the ECU; G - contact for controlling the electric fuel pump; M - contact for issuing...
Removal and installation of the engine with injection system 1. Before removing the engine, it is necessary to remove the pressure in the fuel supply system. To do this, disconnect the fuel pump wiring harness connector from the injection...
Engine cylinder head with injection system Chain tensioner 1 - cap nut; 2 - tensioner housing; 3 - rod; 4 - plunger spring; 5 - washer; 6 - plunger; 7 - spring; 8 - cracker; 9 - spring ring; A - plunger surface; B - places...
Removal and installation of central injection unit 1. Place the shift lever in neutral position and apply the parking brake to the vehicle. 2. Since fuel pressure remains in the fuel system after the engine is stopped, the first...
Disassembly and assembly of the central injection unit Parts and components of the central injection unit 1 – a screw of factory adjustment of idling; 2 – a cover of a regulator of pressure of fuel; 3 - regulator spring; 4 - regulator...
Checking and repairing the central injection unit 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...
Fuel pressure control The purpose of this control is to check the tightness of the connections of the fuel supply system, check the operation of the pressure regulator and check the operation of the...
Electric fuel pump — removal and installation 1. To remove the pump from the car, disconnect the electrical wires from it and remove the pressure in the fuel supply system to remove the central injection unit. 2. Disconnect...
Electric equipment of the fuel injection system The electrical equipment diagram is distinguished by the introduction of an injection system harness, the wires of which the electronic control unit is connected to the sensors...