The present invention is related to a method and system for transferring wireless transmitreceive unit -specific information to support enhanced uplink operation in a wireless communication system. At the first compression molding step one portion of magnetic powders is filled in a molding die and then compression molded to form a lower core. Though one of the first and second temperature sensors is abnormal, it is possible to replace or repair the abnormal temperature sensor, or to control the temperature adjuster by the other normal temperature sensor. The cover is coupled with a first pressure regulating valve for regulating pressure of fuel discharged from the feed pump.