MAZDA issued a recall on the MAZDA6 model

On certain vehicles equipped with the 2.5L engine, a particular type of spider may weave a web in the evaporative canister vent line which may cause a restriction in the line. If this occurs, the fuel tank pressure may become excessively negative when the emission control system works to purge the vapors from the canister. As the canister is purged repeatedly during normal operation, the stress on the fuel tank may eventually result in a crack causing a fuel leak. Fuel leakage, in the presence of an ignition source, could result in a fire causing injury and/or property damage. Correction: Dealers will inspect the canister vent line and, if a web is found, the fuel tank and check valve on the canister vent line will be replaced. The Powertrain Control Module (PCM) will be reprogrammed with modified software having a function to avoid excessive negative pressure of the fuel tank.