Nissan Primera

1990-1992 of release

Repair and car operation



Nissan Primera
+ Nissan Primera brand Cars
+ Current leaving and service
+ Engine
+ cooling and heating Systems
- Power supply system and production of the fulfilled gases
   + Power supply system of carburetor engines
   + Power supply system of injector engines
   - System of production of the fulfilled gases
      Removal and system installation
      Catalyst
+ System of electric equipment of the engine
+ Manual transmission, differential and main transfer
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Appendices


3246bbf9



Catalyst

It is necessary to tell some words about the established catalyst.

The oxygen sensor is inserted into an exhaust system (on the injector engine) or in a final collector (on the carburetor engine). The external electrode of the sensor is influenced by the fulfilled gases. The internal electrode is connected to the atmosphere. At the expense of certain chemical reactions filling of a probe and the various content of oxygen in fulfilled gases and the atmosphere is developed an electric signal. At temperature more than 300 ° About a probe transmits a tension signal in a monitor. If tension less than 450 мВ, a mix is enriched, if tension more than 450 мВ, the mix is impoverished.

For maintenance of constant temperature the probe is warmed up. The heating element of a probe eats an electric current and remains energized while the fuel pump works.

The catalyst settles down in an exhaust system in front of exhaust silencers. Exhaust gases proceed via the catalyst and enter interaction with the precious metal (platinum/rhodium) which was in the catalyst. Under the influence of oxidation harmful substances will be transformed to harmless gas. Chemical reaction begins at temperature 250 ° Page.

As it is known the car with the catalyst should refuel only unleaded gasoline (normal or super, i.e. АИ95 or АИ98).

Not to park the car with the hot catalyst over a dry grass or something similar as the bottom can ignite and occur a fire.