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
6.4.2.3.1. The coal filter
6.4.2.3.2. The thermovacuum valve
6.4.2.3.3. The electromagnetic valve
6.4.2.4. System рециркуляции exhaust gases
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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6.4.2.3. The monitoring system over allocation of steams of fuel from fuel system


MODELS WITH THE CARBURETTOR ENGINE

Identification of connections of hoses of the coal filter


Check

PERFORMANCE ORDER
1. If you consider that the system is faulty, disconnect hoses from the coal filter and the thermovacuum valve, and blow them.
2. For check of the thermovacuum valve which is established on the right party of an inlet collector when the engine cold disconnect from the valve both hoses. Connect a hose to one of branch pipes of the valve and blow in it. The valve should be closed and should not pass air. Start the engine and warm up it to normal working temperature. Again blow in a hose; the valve should be opened and air should pass freely. If the valve does not work how has been described above, replace it.
3. The coal filter is located in the right back corner of an impellent compartment. The coal filter and its valve can be checked up as follows.
4. Walk along a hose "And" from the coal filter and disconnect it from тройникового connections. Start the engine and try to involve in itself air from a hose; the valve should not pass air, and speed of work of the engine should increase a little. Connect a hose back to тройниковому to connection.
5. Walk along a hose "With" from the coal filter and disconnect it from поплавковой carburettor chambers. Start the engine and blow in a hose; the valve should not pass air. Connect a hose back to the carburettor.
6. Walk along a hose "In" from the coal filter and disconnect it from an inlet collector. When the engine is muffled, blow in a hose and pull in itself air from a hose; the valve should not pass air in one direction. Connect a hose back to an inlet collector.
7. If at carrying out of the checks described in subitem 4-6, there was air leak through any of hoses, and its valve it is necessary to replace the coal filter.

MODELS "PHASE I" (MODEL OF RELEASE OF 1993, TILL JUNE) WITH THE ENGINE IN VOLUME OF 2,0 L AND MULTIDOT SYSTEM VSPRYSKA OF FUEL

Check

PERFORMANCE ORDER
1. If you consider that the system is faulty, disconnect hoses from the coal filter established in the right back corner of an impellent compartment, and blow them.
2. The coal filter and its valve can be checked up as follows. Disconnect hoses from the coal filter and blow in a branch pipe "And"; the valve should not pass air. Blow each of branch pipes "In" by turns. Both channels should be opened, and freely pass air. If checks have not given expected results, and the valve it is necessary to replace the coal filter.

ALL OTHER MODELS WITH VSPRYSKY FUEL


Check

PERFORMANCE ORDER
1. If you consider that the system is faulty, disconnect hoses from the coal filter and the electromagnetic valve, and blow them. On models with the engine in volume of 1,6 litres, the coal filter it is located in the left back corner of an impellent compartment, and the electromagnetic valve is located on the back party of an inlet collector. On models with the engine in volume of 2,0 litres, the coal filter it is located on a left-hand side of an impellent compartment, and the electromagnetic valve is located on the left or bottom party of an inlet collector.
2. The electromagnetic valve can be checked up using the resulted scheme of connections.
If it is necessary, remove the valve, being guided by the instructions resulted in subsection 6.4.2.3.3, for access improvement.
3. Blow in a branch pipe "And" and check up, that through it did not pass air. Blow in a branch pipe "In" and check up, that air passed through this branch pipe and left a branch pipe "With".
4. Through a safety lock connect the power supply on 12 Volt to the electromagnetic valve how it is shown in drawing. After pressure giving, blow in a branch pipe "And" and check up, that air passed through the valve and left a branch pipe "In". Blow in a branch pipe "In" and check up, that air passed through the valve and left a branch pipe "With".
5. If the electromagnetic valve does not work how it was expected, means, it is faulty, and it is necessary to replace it.
6. The coal filter and the valve can be checked up how it is described above.


6.4.2.2. The Katalitichesky converter

6.4.2.3.1. The coal filter