Checking the evaporative emission control system components [Toyota Land Cruiser J100]

The purpose of the fuel vapor recovery system (EVAP) is to remove fuel vapors that break off in the fuel tank and cavities of the fuel system tract during parking into a special carbon adsorber, from which they are discharged into the intake manifold after the engine is started and burned in the combustion chambers.



The most typical symptom of a malfunction of the EVAP system is the appearance of a strong smell of gasoline in the engine compartment of the car. If such a smell appears, you should immediately check the condition of the carbon adsorber located in the front part of the compartment (refer to the accompanying illustration). Check the adsorber body and the fittings of the hoses connected to it for cracks and other mechanical damage.

A detailed description of the design and operating principle of the EVAP system is given in Chapter Engine management and emission control systems.

[The original article is on the portal: toyotaman.ru]