Repairs on a forced 1.6-liter engine are a little more complicated: First you need to remove the protective casing and loosen the clamp securing the air filter pipe.
Removing the sensor from the car The idle speed regulator is located in the mounting hole of its unit, that is, the throttle. Fuse 1 provides constant power to the electrical package control unit. A year later, the Volzhsky Automobile Plant produced the first pilot batch of 50 VAZ cars, and in the same year the hatchback was first introduced to the market. If you removed the sensor from the car, but the engine operation does not change, then that was the reason. Timing marks 8 class VAZ! Installation of timing belt 8kl.VAZ2108,2109,2110,2111,2113,2114,2115
To do this: Remove the wire tip from the spark plug of the first cylinder; We bring it to the metal part of the motor at a distance of mm; Turn on the starter; Let's see if a spark jumps between the wires; Similarly, we check the wires from spark plugs 2, 3 and 4 of cylinders. Advice: if you want to understand the operation of a car’s ignition and power system, it would be a good idea to watch video materials from a school physics course.
The search starts with: Ignition module; ECU - on cars with a VAZ engine To check the ignition coil, you need to use a tester, with which you should measure the resistance of the primary and secondary windings. Once you understand it and understand the principle of operation, you can effectively drive your car and perform minor repairs.
Side door wiring harness connector to instrument panel harness; Side door wiring harness connector to seat heating harness; Electric lock of the right rear door; Harness block to rear right loudspeaker; Harness block to rear left loudspeaker; Door lock control unit; Side door wiring harness connectors to the additional left harness; Side door wiring harness connectors to the additional left harness; Terminals of the side door wiring harness to the radio; Side door wiring harness block to the additional right harness; A1 is the grounding point for the side door wiring harness.
Modification with an 8-valve VAZ engine, 1.6 liters and 81.6 horsepower. But it may be the degree of his sensitivity. This also introduced some complications and additional wiring harnesses, which are shown in the VAZ electrical diagram
relays and fuses for the computer, Carlson and fuel pump
VAZ-2107 diagram: first option
Full size wiring diagram:
Electrical diagram VAZ-2107 carburetor
Electrical diagram of VAZ 2107, 21074 produced in 1988-2001 with generator 37.3701
- block headlights
- side direction indicators
- accumulator battery
- starter relay
- carburetor electro-pneumatic valve
- carburetor microswitch
- generator 37.3701
- gearmotors for headlight cleaners *
- Fan motor switch sensor
- engine cooling fan motor
- sound signals
- distributor
- spark plug
- starter
- coolant temperature gauge sensor
- engine compartment lamp
- low oil pressure warning sensor
- low brake fluid level indicator sensor
- windshield wiper motor
- carburetor electro-pneumatic valve control unit
- ignition coil
- headlight washer pump motor *
- windshield washer pump motor
- mounting block
- windshield wiper relay
- hazard warning and direction indicator relay
- brake light switch
- reverse light switch
- ignition relay
- ignition switch
- three lever switch
- hazard switch
- socket for portable lamp**
- heater fan switch
- additional resistor for the electric motor of the heater (stove)
- rear window heating indicator lamp
- low brake fluid level warning lamp
- signaling unit
- heater fan electric motor
- glove compartment lamp
- light switches on the front door pillars
- switches for warning lights of open front doors ***
- front door open warning lights ***
- connection block
- cigarette lighter
- watch
- instrument light switch
- diode for checking the serviceability of the low brake fluid level indicator lamp
- fuel level indicator
- fuel reserve indicator lamp
- speedometer
- turn signal indicator lamp
- carburetor choke indicator lamp
- battery charge indicator lamp
- carburetor choke warning switch
- instrument cluster
- econometrician
- light switches on the rear door pillars
- coolant temperature gauge
- tachometer
- indicator lamp for parking brake activation (“handbrake”)
- low oil pressure warning lamp
- high beam indicator lamp
- indicator lamp for turning on external lighting
- voltmeter
- Parking brake indicator switch (“handbrake”)
- outdoor light switch
- rear window heating switch with backlight
- rear fog light switch with on/off indicator *
- fog light circuit fuse
- lampshade ****
- tail lights
- level indicator and fuel reserve sensor
- connectors for connecting to the rear window heating element *
- license plate lights 2107
Wiring diagram VAZ-2107 carburetor - full view:
Differences in work
Advantages
So, what are the benefits received by the car owner whose car has injection installed:
- There is less chance of stalling when starting from a standstill - the electronics react more flexibly to the operation of the gas pedal, allowing you to move off more confidently from idle;
The engine compartment wiring harness of the VAZ 2107-20 has different connectors
- Easy engine starting - there is no need to manually operate the choke knob;
- Reduced warm-up time for a cold engine - the electronic system optimizes the minimum stable speed. You can start moving after starting, without fear of jerks and dips typical of a carburetor;
- Reduce routine maintenance of electrical equipment . In particular, there is no need to constantly adjust the gap in the breaker contacts;
For reference: Other domestic car factories also modernized electrical equipment, in particular the ignition system - see the publication on the UAZ 31514 wiring diagram.
- Reduced adjustment work on the carburetor - electronics can reduce fuel consumption and make engine operation more environmentally friendly.
In the video you can see the stable start of the VAZ 2107 injection engine.
Flaws
The injection system also has some flaws, in particular:
- Without a diagnostic tool, it is quite difficult to identify a malfunction in the engine management system;
- Standard wiring 2107 does not allow troubleshooting using a warning lamp;
- The factory instructions most often instruct you to contact a service center for diagnostics. However, the price of such a service is not always justified for the car owner.
In the photo - diagnostics of the oxygen sensor of the VAZ 2107
Mounting block connection diagram
P1 — relay for turning on the heated rear window; P2 - relay for turning on the headlight cleaners and washer; P3 - relay for turning on sound signals; P4 - relay for switching on the electric motor of the engine cooling system fan; P5 - headlight high beam relay; P6 - low beam headlight relay; A - the order of conditional numbering of plugs in the mounting block blocks. The outer number with the letter “Ш” in the plug designation is the block number, and the inner number is the conventional number of the plug.
Summary
Overall, the car turned out to be of good quality, which allowed it to remain on the factory assembly line until 2012. Among the features of this attractiveness are low price, the possibility of increasing the interior, ease of maintenance and availability of spare parts.
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Schemes of individual blocks of the seven
Power supply system
Power plant starting system
1 - starter; 2 - relay; 3 — ignition switch; 4 - battery
Ignition system
1 - generator; 2 — ignition switch; 3 - distributor; 4 - breaker; 5 — candles; 6 - coil; 7 - battery
Contactless ignition system
External and internal lighting
Windshield wipers and washers
1 — electric motors of the windshield wiper; 2 — washer motor; 3 — mounting block; 4 — ignition switch; 5 - washer switch
Cooling Fan
1 — fan electric motor; 2 - sensor; 3 — mounting block; 4 - ignition relay; 5 - ignition switch.
Additional designations
The fuses of the VAZ 2107 car are located as follows:
- taillights and reversing lights;
- electric motor of the heater fan, headlight washer and glass wiper pumps;
- indicator for turning on the rear window heater VAZ 2107;
- direction indicators and hazard warning relays;
- fog lights;
- tachometer, voltmeter;
- control lamps for oil pressure, fluid, fuel level and reserve indicators on the instrument panel, instrument panel lighting;
- cigarette lighter and clock;
- VAZ sound signal;
- interior lighting (up to 2000 there was one lamp on the ceiling, for those manufactured after 2000 there were two lamps on the rear door pillars);
- high beam headlights;
- high beam warning lamp;
- engine compartment lighting and license plate lighting;
- glove compartment lighting;
- right headlight;
- left headlight.
A detailed wiring diagram of the VAZ 2107 will help you understand the intricacy of electrical wiring elements, find the air cover switch or the windshield and headlight wiper relay.
Source
Wires for connecting electrical appliances
| Connection type | Section, mm2 | Insulation color |
| Negative terminal of the battery - vehicle ground (body, engine) | 16 | Black |
| Starter positive terminal - battery | 16 | Red |
| Positive contact of the generator - plus battery | 6 | Black |
| Generator - black connector | 6 | Black |
| Terminal on the generator “30” – white MB block | 4 | Pink |
| Starter connector “50” – starter relay | 4 | Red |
| Starter Start Relay - Black Connector | 4 | Brown |
| Ignition switch relay - black connector | 4 | Blue |
| Ignition switch output “50” – blue connector | 4 | Red |
| Ignition switch connector “30” – green connector | 4 | Pink |
| Right headlight plug - ground | 2,5 | Black |
| Left headlight plug - blue connector | 2,5 | Green, gray |
| Generator output “15” – yellow connector | 2,5 | Orange |
| Right headlight connector - ground | 2,5 | Black |
| Left headlight connector - white connector | 2,5 | Green |
| Radiator fan - ground | 2,5 | Black |
| Radiator Fan - Red Connector | 2,5 | Blue |
| Ignition switch output “30/1” – ignition switch relay | 2,5 | Brown |
| Ignition switch contact “15” – single-pin connector | 2,5 | Blue |
| Right headlight - black connector | 2,5 | Grey |
| Ignition switch connector “INT” – black connector | 2,5 | Black |
| Six-pin block of the steering column switch - “ground” | 2,5 | Black |
| Two-pin block of the steering column switch - glove box illumination lamp | 1,5 | Black |
| Glove compartment light - cigarette lighter | 1,5 | Black |
| Cigarette lighter - blue block connector | 1,5 | Blue, red |
| Rear window defroster - white connector | 1,5 | Grey |
Useful: Pinout, connection diagram and checking the VAZ ignition coil
How are the main wiring elements of the VAZ-2106 car protected?
The electrical wiring of the machine is protected by fuses, which are mainly installed in the central and additional units, located at the bottom of the instrument panel on the left side next to the steering column. The circuit from the battery to the terminals and connections is closed when the car ignition is turned on.
Tip: when carrying out work to replace or repair lighting fixtures and wiring, be sure to disconnect the battery from the network. Relays, switches, batteries, spark plugs, and even the relay winding in the lighting system and fan in the cooling system are not protected by fuses. When bleeding the brakes on a VAZ-2107, a similar problem may arise.
If one of the circuit elements is damaged, the fuse trips. If a malfunction occurs in the main set of fuses, the backup fuses are switched on, which are additionally installed next to the ignition unit. If a blown fuse is detected, it is not enough to just replace it - you need to study the wiring in detail and find out the reason for the combustion of this spare part in the VAZ-2106.
The electrical equipment and wiring diagram should help you quickly find and eliminate faults in the headlights, dashboard indicators and other systems of your VAZ-2106.
Car wiring diagram
1 – radiator fan drive motor; 2 – relay and fuse block (mounting block); idle speed sensor; 4 – engine control unit; 5 – potentiometer; 6 – set of spark plugs; 7 – ignition control unit; 8 – electronic crankshaft sensor; 9 – electric fuel pump; 10 – tachometer 2107; 11 – lamp for monitoring the health of electronic systems; 12 – ignition system control relay; 13 – speed sensor; 14 – diagnostic connector; 15 – set of injectors; 16 – adsorber solenoid valve; 17, 18, 19 – fuse block protecting the injection system circuits; 21 – electronic fuel pump control relay; 22 – electronic relay for controlling the intake pipe heating system; 23 – intake pipe heating system; 24 – fuse protecting the heater circuit; 25 – electronic oxygen level sensor; 26 – cooling system temperature control sensor; 27 – electronic air damper sensor; 28 – air temperature sensor; 29 – pressure control sensor.
What's new
The main innovation was the replacement of the mechanical functions of the ignition system and preparation of the air-fuel mixture with electronic devices, which are more accurate and efficient. The wiring diagrams of the VAZ 2112 and the Samara family also underwent a similar modernization. Accordingly, the wiring of the VAZ 2107 to the injector received differences from the carburetor version.
Under the hood of the VAZ 2107-20, the absence of a carburetor and distributor is immediately striking
ECM functions
The electronic engine control system (abbr. ECM) took on the following operating parameters of the power unit:
- Controlling the amount of air and gasoline entering the car engine cylinders,
- crankshaft speed
- Spark plug control;
- Adjustment of ignition timing in all operating modes;
- Turning the electric fuel pump on and off,
- Control of the electric fan of the engine cooling system.
The photo below shows a VAZ 2107 wiring diagram for an injector with an M1.5.4N ECM and a January-5.1.3 controller
Injection system VAZ 2107
Electrical diagram
The classic 2107 wiring on cars with an injection system has also undergone changes. In particular, under-hood elements equipped with connectors for sensors and electronic devices have appeared.
Electrical diagram of VAZ 2107 with carburetor
For reference: The developers of Moskvich 2141 followed a similar path. True, they had a more global problem - the lack of their own engine.
Explanation for the electrical diagram of the carburetor VAZ 2107
For reference: The photo below shows the electrical wiring of a VAZ 2107 to an injector with catalog numbers. The differences from carburetor kits are in the engine compartment harnesses.
When converting the engine to an injection system, you should also purchase new wiring
Fuse and relay diagram 2107
On newer “sevens” a block with 17 fuses and 6 relays is installed. VAZ 2107 fuses on the “new” unit protect the following electrical circuits and devices:
- Reversing lamps, heater fan, rear window defroster warning lamp and relay, rear wiper motor and rear washer pump.
- Electric motor for front wipers.
- Reserve socket.
- Reserve socket.
- Power supply for heated rear window.
- Clock, cigarette lighter, power socket “carrying”.
- Signal and radiator fan.
- Turn signal lamps in emergency mode.
- “Fog lights” and a relay that regulates the voltage of the on-board network.
- Instrument panel lamps.
- Brake light bulbs.
- Right high beam headlight.
- Left high beam headlight, high beam warning lamp.
- Side lights (rear right, front left), license plate and engine compartment lighting.
- Side lights (rear left, front right), glove compartment and cigarette lighter lamps.
- Low beam (right lamp).
- Low beam (left lamp).
The block relays perform the following functions:
- Heated rear window relay.
- Headlight cleaner and washer relay.
- Signal relay.
- Cooling system electric fan relay.
- High beam relay.
- Low beam relay.
The fuse block of the VAZ 2107 (injector) is no different from the block on the carburetor “seven”. Injection models are simply equipped with an additional relay and fuse box installed in the cabin under the glove compartment. The block includes three relays - the “main” relay, the fuel pump relay and the fan relay.
Carburetor engine
The operation of an engine with a carburetor has a classic scheme:
- When the ignition key is turned to the "Starter" position, the electronic system supplies power to it.
- The generator starts working.
- The generator transmits electric current to the coil. It is used to produce high-voltage currents. Low voltage currents are supplied to the coil. Passing through the module, they are transformed into high-voltage ones and transmitted via a high-voltage wire to the distributor.
- Using high-voltage currents, the distributor drive rotates the crankshaft of the power unit. He closes the contacts in order of priority and delivers an electric discharge to the spark plugs.
The principle of operation is reflected in the electrical circuit of an engine with a carburetor.
Classic wiring diagram - carburetor
Classic ignition
The contact system includes the following elements:
- switch;
- coil;
- distributor;
- high voltage wires;
- candles.
Thanks to the distributor, the circuit of the primary winding of the ignition module is interrupted, and then the high-voltage current is distributed in the required sequence to the spark plugs. With the help of a coil, low voltage current is converted into high voltage current. The spark plugs ignite the fuel mixture in the engine cylinders.
Classic ignition system
If the engine does not start when you turn the ignition key, the reason may be as follows:
- An open circuit between the generator and the coil. In this case, you need to check all contacts and the integrity of the electrical wiring.
- The coil is faulty. It can be checked using a spark: remove the wire from the distributor and touch the metal part. If a spark appears during operation of the power unit, it means the module is working.
- A break in the electrical circuit between the distributor and the spark plugs. In this case, you need to check inside the distributor cover, the slider located there, and the high voltage wiring connecting the distributor cover to the spark plugs.
After identifying and eliminating a malfunction in the carburetor, the engine should start without problems if the other components of the car are working properly.
Electronic ignition
Some VAZ 2107 models that were produced after 1987 had a contactless ignition system installed. Although the car was more expensive, it was in demand. The innovation was that an electronic switch was installed between the distributor and the coil.
The contactless ignition system includes:
- switch;
- ignition switch;
- coil;
- distributor sensor;
- high voltage wires;
- candles.
Non-contact ignition system
Using a distributor sensor, control signals are transmitted to the switch to generate a spark and high-voltage current pulses are distributed across the spark plugs. The function of the switch is to convert control pulses from the contactless sensor into a pulse current that is supplied to the primary winding of the coil. Thus, it improves spark formation if the engine runs on a lean fuel mixture.
