Renault Megane Quiz
Engine and peripherals

Fuel Vapour Recirculation

In this manual: Engine and peripherals
Engine and peripherals — 141Chassis — 79Chassis — 72Renault Mégane III Driver's Manual — 87Electrical equipment — 221Engine and peripherals — 47Electrical equipment — 80Transmission — 14Air conditioning — 30Bodywork — 115Trim and upholstery — 44General vehicle information — 27Air conditioning — 59General vehicle information — 16Transmission — 38Sealing and soundproofing — 7General vehicle information — 3
8steps
~48min
2/5difficulty
Done 0 of 8

PETROL

I - CIRCUIT FUNCTIONAL DIAGRAM

Réaspiration des vapeurs d'essence
  1. Intake manifold
  2. Fuel vapour canister purge solenoid valve
  3. Fuel vapour canister
  4. Reservoir
  5. Atmospheric vent
    Réaspiration des vapeurs d'essence
    Réaspiration des vapeurs d'essence
  6. Fuel vapours recirculation from the fuel tank
  7. Fuel vapours recirculation to the engine
  8. Fuel tank atmospheric vent
WARNING

With the engine running normally, the atmospheric vent must not be blocked.

II - OPERATING PRINCIPLE

The fuel tank is vented through the fuel vapour canister.

Fuel vapours are retained as they pass through the activated charcoal contained in the canister.

The fuel vapours contained in the canister are purged and burned by the engine.

To do this, the solenoid valve connects the fuel vapour canister and the intake manifold.

This solenoid valve is located on the shock absorber turret.

The solenoid valve principle is to provide a variable flow section (depending on the duty cycle signal) sent by the injection computer.

The variable flow section of fuel vapours through the solenoid valve results from the balance between the magnetic field created by energising the coil and the force of the return spring which keeps the solenoid valve closed.

Test yourself

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