For prevention of environmental contamination from short burnt and evaporating gases, for preservation of dynamic characteristics of the car, at the economic expense of fuel, the set of systems of decrease in toxicity of the fulfilled gases is used. They include:
– System of onboard diagnostics (OBD);
– Electronic system of injection of fuel (EFI);
– System of repeated burning of the fulfilled gases (EGR);
– System of catching of steams of fuel (EVAP);
– System of compulsory ventilation картера (PCV);
– каталитический neutralizer.
In this section the general data and the operations of checks accessible to performance in house conditions are resulted.
If there is an assumption that the system of decrease in toxicity of the fulfilled gases works with failures, preliminary check up fuel system and ignition system. Diagnostics of some systems of decrease in toxicity of the fulfilled gases demands specialised tools and the equipment.
It is necessary to remember that the most frequent reason of failure of systems of decrease in toxicity of the fulfilled gases consists in breakage or a detachment of a wire or a vacuum hose, therefore first of all check up their reliability of connection and integrity.
The information tablet with the important data and the information on regulation of the monitoring system and decrease in toxicity of the fulfilled gases is pasted to a cowl underside. Also there is a label with diagrammes and identification of an arrangement of vacuum hoses of management by the monitoring system and decrease in toxicity of the fulfilled gases.