Fuel vapour separator

FUEL VAPOUR SEPARATOR

This is located in the luggage compartment, and its task is to limit the amount of fuel vapours reaching the canister, condensing part of them due to its shape. It is formed of a plastic container with two connections: a lower one for the inlet of fuel vapours and the return of condensed fuel to the tank and an upper one for sending vapours to the canister.

REMOVAL/REFITTING

• Remove the spare wheel and the luggage compartment front panel.

1. Disconnect the fuel vapour inlet pipe from the separator.
2. Disconnect the fuel vapour delivery pipe to the canister from the separator.
3. Slacken the two fastening screws and remove the fuel vapour separator.

FUEL VAPOUR SOLENOID VALVE

The reason for the use of this valve, controlled by the electronic control unit, is to send the vapours stored in the canister to the engine intake. This valve enclosed in a casing, comprises a mobile part or shutter, restrained to a plate spring; the fixed part is formed of a metal cylinder, perforated inside, on which the coil is wound.

REMOVAL/REFITTING

• Remove the spare wheel and the luggage compartment front panel.
• Disconnect the battery (-) terminal.
• Remove the canister without disconnecting it from its pipes.

1. Slacken the two fastening screws and remove the canister support bracket complete with solenoid valve.
2. Disconnect the electrical connection and the fuel inlet and outlet pipes, then slacken the fastening clamp screw and remove the solenoid valve.

FUEL VAPOUR FILTER (CANISTER)

The filtering element is formed of active carbons enclosed in a plastic container. Their purpose is to absorb the fuel vapours leading from the separator. A one-way valve, to which a special pipe is connected, admits outside air when the vapours are withdrawn to wash the active carbons.

REMOVAL/REFITTING

• Remove the spare wheel and the luggage compartment front panel.

1. Disconnect the fuel vapour inlet and outlet pipes from the canister.
2. Disconnect the outside air inlet pipe from the one-way valve on the canister.
3. Slacken the fastening clamp screw and remove the canister.