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Control systems and emission control

general information

The fuel injection system based on a sequence of pulses and measurement of the air flow. The system supplies the engine cylinders toplivnovozdushnoy mixture of optimal composition. Intake air and fuel injection system works in conjunction with the electronic engine control. All sensors and switches are connected to the ECM, which handles incoming data and calculates the timing and duration of opening of the electrically operated fuel injectors.

The basic requirement for optimal fuel delivery is determined by the data coming in at the ECM from the MAF sensor. Other sensors and switches are used for the following measurements:

- Coolant temperature;
- Speed of the crankshaft of the engine;
- The oxygen concentration in the exhaust gases;
- Determining the position of the top dead point of the piston of the first cylinder in the compression stroke.

Location of control and reduction of emissions in the engine compartment of cars with engines of 1.6 liters and 1.8. 2,0 l

1 - absolute pressure sensor in the intake manifold (MAP) 2 - Intake air temperature (IAT) 3 - coolant temperature sensor (ECT) 4 - throttle position sensor (TPS) 5 - the camshaft position sensor (CMP) 6 - the gauge of an angle of rotation of the crankshaft (CKP)	7 - bogrevaemy oxygen sensor 8 - nozzle 9 - modulator idle speed (ISA) 11 - the gauge of detonation 12 - blocking switch 15 - C compressor relay 16 - solenoid valve system EVAP (PCSV) 17 - control relay 18 - ignition coil

1 - absolute pressure sensor in the intake manifold (MAP) 2 - Intake air temperature (IAT) 3 - coolant temperature sensor (ECT) 4 - throttle position sensor (TPS) 5 - the camshaft position sensor (CMP) 6 - the gauge of an angle of rotation of the crankshaft (CKP)	7 - bogrevaemy oxygen sensor 8 - nozzle 9 - modulator idle speed (ISA) 11 - the gauge of detonation 12 - blocking switch 15 - C compressor relay 16 - solenoid valve system EVAP (PCSV) 17 - control relay 18 - ignition coil

Location of the monitoring system and emission control in the vehicle

10 - the vehicle speed sensor (VSS) 13 - ignition	14 - ECM 19 - Diagnostic connector (DLC)

1
2
4
9
3
5
18
6
7
8
eleven
12
14
15
17
16
19

Various sensors and switches are informed of any changes to the operating conditions and sends appropriate signals to the ECM. This allows the ECM to adjust the duration of the opening of the nozzles and to maintain an optimal mode for reducing the toxicity of harmful substances in exhaust gases and the operation of the engine under different operating conditions of the vehicle.

To reduce the emissions of harmful substances into the atmosphere together with the exhaust system, the following emission control:

- The fuel vapor recovery system;
- Crankcase ventilation system;
- Exhaust gas recirculation;
- The catalytic converter.