hi, im a bit interested in that ecu.. im running a hks f con s. piggy back, and making 204rwkw.. but, im finding it weird being a piggy back tricking the ecu, the idle is never perfect. i ran a mines ecu before that and the idle was great.. i was wondering if there are any stickers of who tuned it?,, was it bought from japan?, and was it running very rich or lean?.. thanx