Service Nissan Sunny with 1991 on 1997 of release in a body n-14.
1. The maintenance instruction
2. Maintenance service
3. Engines
4. Cooling system
5. Heating and ventilation system
6. Fuel and an exhaust system
6.1. Carburettor engines
6.2. Engines with system of injection of fuel
6.3. System of a food / of release of the fulfilled gases
6.4. System of decrease in toxicity of the fulfilled gases
6.4.1. Models with 1,4 and 1,6 litre engines
6.4.2. Models with 1,6 and 2,0 litre engines
6.4.2.1. System of decrease in emission картерных gases
6.4.2.2. The Katalitichesky converter
6.4.2.3. The monitoring system over allocation of steams of fuel from fuel system
6.4.2.4. System рециркуляции exhaust gases
6.4.2.4.1. The valve рециркуляции exhaust gases
6.4.2.4.2. The valve притиводавления
6.4.2.4.3. The thermovacuum valve
6.4.2.4.4. The operating electromagnetic valve
6.4.2.5. System of thermal neutralisation
6.4.2.6. System of an admission of air in a final collector
6.4.2.7. System of decrease in toxicity of exhausts
7. System of start-up of the engine
8. Coupling
9. Transmissions
10. Semiaxes
11. Brakes
12. Suspension brackets and a steering
13. A body
14. An electric equipment
 




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6-4-2-4-sistema-recirkulyacii-vykhlopnykh-gazov.html

6.4.2.4. System рециркуляции exhaust gases

Check

PERFORMANCE ORDER
Models with the carburettor engine
1. If you consider that the system is faulty, disconnect hoses from the valve рециркуляции, the valve противодавления and the thermovacuum valve and blow them. If hoses are not littered, connect them back.
2. Operations of check of the thermovacuum valve are described in subsection 6.4.2.3 item 2.
3. For valve check рециркуляции, disconnect a vacuum hose from above the valve and connect to a branch pipe of the valve other hose. Pull in itself air from a hose; check up, that the valve diaphragm has risen, and has quickly returned back when you will cease to pull air. Diaphragm work can be checked up, having concerned with a finger of the bottom party of the valve where diaphragm movement is felt. If the diaphragm goes hard or does not move at all, рециркуляции it is necessary to replace the valve.
4. If you are assured that thermovacuum the valve is serviceable, the valve противодавления can be checked up as follows. Warm up the engine to normal working temperature and disconnect a vacuum hose from the valve рециркуляции. Close a finger an aperture of the disconnected hose and quickly increase speed of work of the engine. When speed of work of the engine (and pressure of exhaust gases) increases, should be present at a tube depression. When speed of work of the engine falls, depression receipt in a hose should stop the valve противодавления. If it not so, the valve is faulty, and it is necessary to replace it.
All models with system of injection of fuel
5. The system рециркуляции can be checked up how it has been described in subitem 1-4, passing the information, concerning the thermovacuum valve. Together the thermovacuum valve on these models the operating electromagnetic valve is established. This electromagnetic valve is the same valve as that operates work of the monitoring system on allocation of steams of fuel from fuel system, and it can be checked up how is described in subsection 6.4.2.3 subitem 2-5.


6.4.2.3.3. The electromagnetic valve

6.4.2.4.1. The valve рециркуляции exhaust gases