MAZDA issued a recall on the MAZDA3 model

Certain vehicles may have been manufactured with defective fuel tank shut-off-valves. Under certain conditions, this could cause fuel to flow through the shut-off-valve into the charcoal canister and leak from the external vent. Fuel leakage, in the presence of an ignition source, could result in a fire causing injury and/or property damage. Correction: Dealers will inspect and replace the charcoal canister and associated fuel tank components.