Golf L4-2.0L (AEG) (1999)
Fuel Tank Vent: Testing and Inspection
Pressure retention valve, checking
NOTE:
- The pressure retention valve is open in both directions of flow, from the evaporative emissions (EVAP) canister and from EVAP canister purge
regulator valve -N80- (arrow 1).
- It is only open in one direction of flow from the junction piece for the gravity/overflow valve (arrow -2).