Mazda 3 since 2003
1. Operation and maintenance of the car
2. Engine
2.1. General description of new engines of the L8, LF and L3 models
2.1.1. Mechanical part of engines
2.1.2. Mechanism of change of phases of gas distribution
2.1.3. Lubrication system
2.1.4. Cooling system
2.1.5. Fuel system
2.1.5.1. General information
2.1.5.2. System of an admission
2.1.5.3. The main features of an air duct with variable characteristics (VAD) (L3)
2.1.5.4. Executive mechanism of system (VAD) (L3)
2.1.5.5. Electromagnetic valve of system (VAD) (L3)
2.1.5.6. Backpressure valve of system (VAD) (L3)
2.1.5.7. Fuel knot
2.1.5.8. Block of the fuel pump
2.1.6. System of production of the fulfilled gases and system of decrease in toxicity
2.1.7. Electric equipment of engines
2.2. Mechanical part of engines
2.3. Appendix 1
2.4. Appendix 2
2.5. Appendix 3
2.6. The Z6 engine – a mechanical part
2.7. Lubrication system
2.8. Cooling system
2.9. System of an admission
2.10. Fuel system
2.11. System of production of the fulfilled gases and system of decrease in toxicity
2.12. System of ignition
2.13. Control system
2.14. Tables
3. Transmission
4. Running gear
5. Steering mechanism
6. Brake system
7. Onboard electric equipment
8. Body
 








2-1-5-1-obshhie-svedeniya.html

2.1.5.1. General information

The Mazda 3 cars (GG) are equipped with new engines of a series L. Features of engines of a series L of a privelena are lower:

Fig. 2.53. Scheme of a control system of fuel system of the Mazda 3 car: 1 – PCM block; 2 – ignition coil; 3 – generator; 4 * – the VAD system gate; 5 – air filter; 6 – sensor of a mass consumption of air; 7 * – the executive mechanism of the gate of the VAD system; 8 * – the operating electromagnetic valve of the VAD system; 9 * – the vacuum chamber; 10 * – the backpressure valve of the VAD system; 11 – idling regulator; 12 – electromagnetic valve of a purge; 13 – sensor of provision of a butterfly valve; 14 – sensor of absolute pressure; 15 * – the operating electromagnetic valve of the VIS system; 16 – the operating electromagnetic Variable tumble valve; 17 * – the executive mechanism of the gate of the VIS system; 18 * – the VIS system gate; 19 – executive mechanism of the gate of the VTCS system; 20 – VTCS system gate; 21 – fuel nozzle; 22 * – the operating oil valve; 23 – sensor of provision of a cam-shaft; 24 – the valve of system of recirculation of the fulfilled gases; 25 – detonation sensor; 26 – sensor of temperature of cooling liquid; 27 – valve of ventilation of a case; 28 – sensor of position of the crankshaft; 29 – the sensor of concentration of oxygen with heating (forward); 30 – the sensor of concentration of oxygen with heating (back); 31 – container with absorbent carbon (adsorber); 32 – backpressure valve (bilateral); 33 – pressure regulator; 34 – fuel filter (high pressure); 35 – fuel pump; 36 – fuel filter (low pressure); 37 – fuel tank; 38 – gravitational valve; 39 – quencher of pulsations; 40 – to the PCM block; The Note – *: for L3 engines



– The local network of the CAN controller is used.
– The mechanical fuel system irrevocably of fuel in a tank is used.
– The control system of an admission for improvement of characteristics of the engine in the field of high frequencies of rotation (L3 engine) is used.
– The control system of phases of gas distribution is used for improvement of characteristics of the engine (L3 engine).
– The system of an admission with variable characteristics is used for increase in torque of the engine and efficiency of combustion (L3 engine).
– The control system of injection of fuel carries out correction on absolute pressure in an inlet collector.
– The system has an unregulated corner of an advancing of ignition.
– All connections of fuel-supply lines are equipped with quick-detachable connectors.
– KOEO/KOER self-diagnostics function is used.
– Process of storage of the raw codes is changed.
– MIL signaling device operating mode for a riding cycle of the second type is changed.

Fig. 2.54a. The assembly diagram of a control system of fuel system of the Mazda 3 car with an immobilizer (part 1)


The control system of fuel system of the Mazda 3 car with an immobilizer (fig. 2.54a, 2.54b) contains the following elements: 1 – the sensor of concentration of oxygen with heating (forward); 2 – the sensor of concentration of oxygen with heating (back); 3 – sensor of provision of a butterfly valve; 4 – the sensor of absolute pressure in an inlet collector; 5 – pressure sensor; 6 – sensor of temperature of cooling liquid; 7 – the sensor of a mass consumption of air/air temperature on an admission; 8 – the air temperature sensor on an admission; 9 – the sensor of absolute pressure in an inlet collector; 10 – local network of the controller (CAN); 11 – detonation sensor; 12 – sensor of position of the crankshaft; 13 – sensor of provision of a cam-shaft; 14 – fuel nozzle No. 1; 15 – fuel nozzle No. 2; 16 – fuel nozzle No. 3; 17 – fuel nozzle No. 4; 18 – idling regulator; 19 – heater of the sensor of concentration of oxygen (forward); 20 – heater of the sensor of concentration of oxygen (back); 21 – relay of the air conditioning system; 22 – cooling system fan relay; 23 – cooling system fan relay; 24 – cooling system fan relay; 25 – cooling system fan relay; 26 – relay of the fuel pump; 27 – spiral; 28 – safety lamp; 29 – ignition switch; 30 – main relay; 31 – L8, LF engines (hot area) and L3; 32 – models with the automatic transmission; 33 – models with the mechanical transmission; 34 – generator; 35 – coolant pressure sensor (average); 36 – sensor of pressure of the hydraulic booster of steering; 37 – fan electric motor; 38 – coolant pressure sensor (high and low); 39 – switch of the air conditioning system; 40 – switch of signals of braking; 41 – neutral switch; 42 – coupling switch; 43 switch of range of the transmission; 44 – turbine sensor of speed; 45 – HOLD switch; 46 – TFT sensor; 47 – oil pressure sensor; 48 – car speed sensor; 49 – ignition coil; 50 – generator; 51 – electromagnetic valve of a purge; 52 – the operating electromagnetic valve of the VAD system; 53 – the valve of system of recirculation of the fulfilled gases; 54 – the operating electromagnetic Variable tumble valve; 55 – the operating electromagnetic valve of the VIS system; 56 – the operating oil valve; 57 – valve case; 58 – braking signal; 59 – L8, LF engines (hot area) and L3; 60 – model with the mechanical transmission; 61 – models with the automatic transmission; 62 – L3 engine

Fig. 2.54b. The assembly diagram of a control system of fuel system of the Mazda 3 car with an immobilizer (part 2 – continuation)


Fig. 2.55a. The assembly diagram of a control system of fuel system of the Mazda 3 car without immobilizer (part 1)


The control system of fuel system of the Mazda 3 car without immobilizer (fig. 2.55a, 2.55b) contains the following elements: 1 – the sensor of concentration of oxygen with heating (forward); 2 – the sensor of concentration of oxygen with heating (back); 3 – sensor of provision of a butterfly valve; 4 – the sensor of absolute pressure in an inlet collector; 5 – pressure sensor; 6 – sensor of temperature of cooling liquid; 7 – the sensor of a mass consumption of air/air temperature on an admission; 8 – the air temperature sensor on an admission; 9 – the sensor of absolute pressure in an inlet collector; 10 – local network of the controller (CAN); 11 – detonation sensor; 12 – sensor of position of the crankshaft; 13 – sensor of provision of a cam-shaft; 14 – fuel nozzle No. 1; 15 – fuel nozzle No. 2; 16 – fuel nozzle No. 3; 17 – fuel nozzle No. 4; 18 – idling regulator; 19 – heater of the sensor of concentration of oxygen (forward); 20 – heater of the sensor of concentration of oxygen (back); 21 – relay of the air conditioning system; 22 – cooling system fan relay; 23 – cooling system fan relay; 24 – cooling system fan relay; 25 – cooling system fan relay; 26 – relay of the fuel pump; 27 – ignition switch; 28 – main relay; 29 – L8, LF engines (hot area) and L3; 30 – models with the automatic transmission; 31 – generator; 32 – coolant pressure sensor (average); 33 – sensor of pressure of the hydraulic booster of steering; 34 – fan electric motor; 35 – coolant pressure sensor (high and low); 36 – switch of the air conditioning system; 37 – switch of signals of braking; 38 – braking signal; 39 – neutral switch; 40 – coupling switch; 41 – transmission range switch; 42 – entrance/turbine speed sensor; 43 – HOLD switch; 44 – TFT sensor; 45 – oil pressure sensor; 46 – car speed sensor; 47 – oil pressure sensor; 48 – car speed sensor; 48 – generator; 49 – electromagnetic valve of a purge; 50 – the operating electromagnetic valve of the VAD system; 51 – the valve of system of recirculation of the fulfilled gases; 52 – the operating electromagnetic Variable tumble valve; 53 – the operating electromagnetic valve of the VIS system; 54 – the operating oil valve; 55 – valve case; 56 – L8, LF engines (hot area) and L3; 57 – models with the mechanical transmission; 58 – models with the automatic transmission; 59 – L3 engine.

Fig. 2.55b. The assembly diagram of a control system of fuel system of the Mazda 3 car without immobilizer (part 2 – continuation)



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2.1.5. Fuel system
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2.1.5.2. System of an admission




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