Repair and car operation
+ 1. The maintenance instruction
+ 2. The engine
+ 3. Greasing system
+ 4. Cooling system
+ 5. The control, toxicity decrease
- 6. Fuel system
6.1. Specifications (SOHC and DOHC)
6.2. Check of the fuel pump
6.3. Check of the pressure created by the fuel pump
6.4. Checks of system of injection MFI
6.5. A control lamp of malfunctions (MIL)
6.6. Diagnostic codes of malfunctions «OBD-II»
6.7. Diagnostic codes of malfunctions, except «OBD-II»
6.8. Replacement of the fuel filter
6.9. Replacement of the terminator of overflow (the double-thread valve)
6.10. Replacement of the gauge of level of fuel
6.11. A control system of engine MFI
6.12. Fuel atomizers
6.13. Throttle knot
6.14. The power supply system with the carburettor
6.15. Check of frequency of rotation of idling
6.16. Adjustment of frequency of rotation of idling
6.17. Frequency of rotation of idling and adjustment of a fuel mix
6.18. Check and starting arrangement adjustment
6.19. Check and adjustment of a free course of a cable of an accelerator
6.20. A fuel tank
6.21. The canister of catching of steams of fuel
6.22. Replacement of the fuel filter
6.23. The carburettor
6.24. A cable and an accelerator pedal
6.25. Search and elimination of malfunctions of fuel system with the carburettor
+ 7. Ignition system
+ 8. Coupling
+ 9. A transmission
+ 10. Axes and power shafts
+ 11. A suspension bracket
+ 12. A steering
+ 13. Brake system
+ 14. A body
+ 15. A central air
+ 16. The electric equipment
+ 17. The appendix
+ 18. Electroschemes
Placing of elements of control system MFI
Management of fuel system is carried out by the block of engine management ЕСМ (Engine Control Module). Block ESM spends adjustment of a corner of an advancing of ignition, defines quantity of fuel submitted to the engine, operates system of decrease in toxicity of the fulfilled gases and frequency of rotation of a cranked shaft of the engine idling, and also coupling of the compressor of the conditioner etc. Block ESM changes power setting depending on changing operational modes on the basis of signals from various switches and gauges.
For example, block ESM regulates a corner of an advancing of ignition on the basis of signals of gauges which react to frequency of rotation of a cranked shaft, temperature of a cooling liquid, position throttle заслонки, the transfer included at present, speed of the car etc.
Block ESM regulates frequency of rotation of a cranked shaft of idling on the basis of signals of gauges which react to position throttle заслонки, the speed of the car included at present transfer etc.
The gauge of a measuring instrument of the expense of air "OBD" (MAF – Mass Airflow Sensor)
The gauge of temperature of air arriving in the engine "OBD" (IAT – intake air temperature)
The gauge of absolute pressure in an inlet collector, except "OBD" (MAF – Manifold Absolute Pressure)
The gauge of absolute pressure in an inlet collector represents the sensitive variable resistor. It measures pressure in an inlet collector which changes depending on operational modes of the engine and is transformed to pressure. The gauge also is used for measurement of atmospheric pressure at start of the engine and provides power setting at different heights above sea level. On the basis of the information from the gauge the engine management block regulates quantity of fuel submitted to the engine, and also changes a corner of an advancing of ignition.
The gauge of temperature of air arriving in the engine (IAT – intake air temperature)
The gauge of temperature of a cooling liquid (ECT – Engine Coolant temperature)
The gauge of temperature of a cooling liquid supervises temperature of a cooling liquid and on the basis of a signal of the gauge block ESM calculates width of the impulse submitted on atomizers therefore the quantity of the fuel submitted to cylinders of the engine changes, and also changes a corner of an advancing of ignition.
The gauge of position throttle заслонки (TP – Throttle Position)
The gauge of position throttle заслонки transfers the information on which basis block ESM defines when throttle заслонка it is closed, is completely open or is in intermediate positions. The gauge is rigidly connected to shaft throttle заслонки. Depending on position throttle заслонки resistance of the gauge changes. For a food of the gauge from block ESM on it pressure 5 V.Vyhodnoe pressure of the gauge moves changes from 0,25 In at the minimum opening throttle заслонки to 4,7 In at full opening throttle заслонки.
The gauge of position of a camshaft (CMP – Camshaft Position Sensor)
The gauge of position of a camshaft develops impulses on which basis block ESM identifies the first cylinder and time of opening of an atomizer.
The gauge of a corner of turn of a cranked shaft (CKP – Crankshaft Position Sensor)
The gauge of a corner of turn of a cranked shaft transfers to block ESM the information on position of a cranked shaft. On the basis of the information of a target signal of this gauge and a signal of the gauge of position of a camshaft block ESM defines a corner of an advancing of ignition and the cylinder to which it is necessary to submit fuel. In the absence of target signals of the gauge the engine will not be started.
The oxygen gauge
Depending on the oxygen maintenance in the fulfilled gases the oxygen gauge induces pressure from 0 to 1 V.Na the basis of these data the engine management block changes time of opening of atomizers and a fuel parity in топливновоздушной mixes. That there was a full combustion of a gas mixture and in the fulfilled gases there were no harmful substances, on 14,7 weight parts of air 1 part of fuel should have.
The oxygen gauge is equipped by a heater which maintains temperature of the gauge in a certain interval at engine work on all operational modes. Maintenance of certain temperature of the gauge allows system to be put faster into operation and to work in an idling mode.
Fuel atomizers on the basis of signals from block ESM inject fuel into engine cylinders. The quantity of submitted fuel depends on time of opening of atomizers, i.e. from width of an impulse of pressure submitted on an atomizer winding.
The detonation gauge
The detonation gauge reacts to high-frequency fluctuations of the block of cylinders and transforms them to the electric signals which size increases at detonation increase. On the basis of these signals block ESM displaces the moment of ignition towards delay therefore the detonation is eliminated.
Fuel pipelines and hoses