Fuel injection system for cars VAZ-21044

VAZ-21044 cars with fuel injection system
Some VAZ-21044 vehicles are equipped with a 1.7-liter engine with a central fuel injection system. In this system, fuel is injected by one nozzle into the central injection unit...

Catalytic converter
Neutralizer 1 – ceramic block with catalysts Toxic components of exhaust gases are hydrocarbons (unburned fuel), carbon monoxide and nitrogen oxide. A three-way catalytic...

Electronic control unit
Injection system diagram 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; 7 –...

Electronic control unit sensors
Central injection unit 1 – fuel pressure regulator; 2 – nozzle; 3 – fuel supply nipple; 4 – throttle position sensor; 5 – fuel outlet fitting into the tank; 6 – purge pipe of the...

Power supply system — general information
Fuel pressure regulator operation diagram 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 the traditional distributor and ignition coil. It uses the ignition module 7 (see subsection 12.13 ), consisting of two ignition coils and...

Gasoline vapor recovery system
The system uses a method of vapor capture by a carbon adsorber installed in the engine compartment. When the engine is not running, gasoline vapors from the separator are fed...

Operation of the central fuel injection system
The amount of fuel supplied by the injector is regulated by an electrical pulse signal from the electronic control unit (ECU). It monitors engine condition data, calculates fuel...

Diagnostics of faults of the fuel injection system
Here is only a brief overview of diagnostics of the injection system using a test lamp "CHECK ENGINE". Detailed diagnostics using special devices and diagnostic cards are...

Reading injection system fault codes
Diagnostic connector A – contact connected to ground; B – diagnostic contact for sending a signal to the ECU; G – contact for electric fuel pump control; M – contact for issuing...

Removal and installation of an engine with an injection system
1. Before removing the engine, it is necessary to remove the pressure in the fuel supply system. To do this, disconnect the electric fuel pump wiring harness connector from the...

Disassembly and assembly of an engine with an injection system
Removal the original parts from the left front side of the engine 1 – retainer; 2 – plug; 3 – bracket; 4 – ignition module Removal the central fuel injection unit and intake...

Connecting rod and piston group of the engine with injection system
Piston and connecting rod markings 1 – arrow for orienting the piston in the cylinder; 2 – repair size; 3 – piston class; 4 – piston pin bore class; 5 – connecting rod class by...

Cylinder head of the engine with injection system
Chain tensioner 1 – cap nut; 2 – tensioner housing; 3 – rod; 4 – plunger spring; 5 – washer; 6 – plunger; 7 – spring; 8 – rusk; 9 – spring ring; A – plunger surface; B – places of...

Removal and installation of the central injection unit
1. Place the gear shift lever in neutral and apply the parking brake. 2. Since fuel pressure remains in the fuel system after the engine has stopped, the pressure must first be...

Disassembly and assembly of the central injection unit
Parts and components of the central injection unit 1 – factory idle adjustment screw; 2 – fuel pressure regulator cover; 3 – regulator spring; 4 – regulator diaphragm; 5 – Air...

Checking and repairing the central injection unit
Nozzle The nozzle is non-disassemblable. When removing the nozzle, be careful not to damage the electrical connector and the spray nozzle. Attention! It is prohibited to clean and...

Fuel supply pressure control
The purpose of this check is to check the tightness of the fuel supply system connections, check the operation of the pressure regulator and check the operation of the electric...

Electric fuel pump — removal and installation
1. To remove the pump from the vehicle, disconnect the electrical wires from it and remove the pressure in the fuel supply system to remove the central injection unit. 2....

Electrical equipment of the fuel injection system
The electrical equipment diagram is distinguished by the introduction of the injection system harness, the wires of which connect the electronic control unit to the sensors and...

This section is available on russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian

More articles from other manuals on VAZ cars:
➠ Power unit: Fuel system (injector) VAZ-2107 (1982-2012)
➠ Power unit: Fuel system (injector) VAZ-21214 (1994-2006)

Share with friends: