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Fuel vapour system
Catching fuel vapour from the tank and burning it off in the engine.
P0440P0440: the fuel vapour system has a faultP0441P0441: the fuel vapour system isn't purging the way it shouldP0442P0442: there's a small leak in the fuel vapour systemP0443P0443: the fuel vapour purge valve circuit has a faultP0446P0446: the fuel vapour system's vent valve circuit has a faultP0455P0455: there's a large leak in the fuel vapour systemP0456P0456: there's a very small leak in the fuel vapour systemP0457P0457: the fuel cap is loose, off, or not sealing