Antipollution; Gasoline Vapours Reaspiration - Dacia 1304 2004 Repair Manual

GASOLINE VAPOURS REASPIRATION

The cycling circuit of the fuel vapours has as purpose the reduction of the environment
pollution with gasoline vapours, and is composed of:
1. Fuel tank, tight
2. Active carbon can
3. Carbon can purging valve
4. Fresh air intake
The gasoline vapours are absorbed from the tank (1) in the can (2) with active carbon
grains and arriving then at the purging valve (3). The electric valve opening is done by the
electronic control unit ( pin 29) in certain operation conditions of the engine.
Check this circuit as far as its sealing is concerned, its valve operation as well as the
free cycling of the vapours between the fuel tank and the carbon can.
Take into consideration, when valve mounting, the flow direction of the gasoline vapours,
which must be according to the arrow marked on its body, from the can to the inlet manifold.
Reference value: R purging valve = 35 66 Ù

ANTIPOLLUTION

3
4
14 - 1
1
2
14