For environmental pollution prevention from short burned and evaporating gases, for preservation of dynamic characteristics of the car, at economic fuel consumption, 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);

– catching system паров fuels (EVAP);

– system of compulsory ventilation of a case (PCV);

– catalytic converter.

General information and the operations of checks available to performance in house conditions are given in this section.

If there is an assumption that the system of decrease in toxicity of the fulfilled gases works with failures, previously check fuel system and ignition system. Diagnostics of some systems of decrease in toxicity of the fulfilled gases demands specialized 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 break or a detachment of a wire or a vacuum hose therefore first of all check their reliability of connection and integrity.

The information plate with important data and information on regulation of the monitoring system and decrease in toxicity of the fulfilled gases is pasted to a reverse side of a cowl. Also there is a label with charts and identification of an arrangement of vacuum hoses of management by the monitoring system and decrease in toxicity of the fulfilled gases.