Service of Nissan Sunny from 1991 to 1997 release in n-14 body.
1. Maintenance instruction
2. Maintenance
3. Engines
4. Cooling system
5. System of heating and ventilation
6. Fuel and exhaust system
6.1. Carburetor engines
6.2. Engines with system of injection of fuel
6.3. System of food / production 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 liter engines
6.4.2. Models with 1,6 and 2,0 liter engines
6.4.2.1. System of decrease in emission of crankcase gases
6.4.2.2. Catalytic converter
6.4.2.3. The control system over release of vapors of fuel from fuel system
6.4.2.4. System of recirculation of exhaust gases
6.4.2.5. System of thermal neutralization
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
6.4.2.7.1. System of decrease in toxicity of exhausts (idling mode)
6.4.2.7.2. Damper of a butterfly valve
7. System of launch of the engine
8. Coupling
9. Transmissions
10. Half shafts
11. Brakes
12. Suspension brackets and steering
13. Body
14. Electric equipment
 







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6.4.2.7.1. System of decrease in toxicity of exhausts (idling mode)


Valve of adjustment of speed of idling

The valve of adjustment of speed of idling (it is specified by an arrow) is installed on the basis of a casing of the air filter.

Check

PERFORMANCE ORDER
1. Uncover the air filter and the filter, being guided by the instructions provided in subsection 6.1.2 for receiving access to the valve.
2. Operation of the valve can be checked by means of the thermometer and the hair dryer for hair. Install the thermometer as it is possible closer to the valve, then, accurately heat it by means of the hair dryer for hair. The valve has to remain closed at a temperature up to 38 °C, begin to open at a temperature that 38 °C to 48 °C and to open completely at a temperature of 48 °C. Let's the valve cool down and check that it was completely closed.
3. If the valve does not open at the specified temperatures or is not closed, it needs to be replaced.

Replacement of the valve of decrease in toxicity

PERFORMANCE ORDER
1. Remove the filtering element of the air filter, being guided by the instructions provided in subsection 6.1.2.
2. Disconnect a hose from below of the valve, then, turn off fixing screws and remove it from a casing of the air filter.
3. Installation is carried out upside-down removals.


6.4.2.7. System of decrease in toxicity of exhausts

6.4.2.7.2. Damper of a butterfly valve