i have been searching but it seems like no one can really tell anyone about it, my block code says b16a then underneath it has 5009474.... i know its the 5 million series and its came from the civic sir, but what does those numbers really mean? ... also wanna know how else would i tell what the transmission is like y1 or ys1 cause i cant seem to locate the stamp... oh and i've been reading and how do i really tell if its OBD0 or OBD1? its a PR-3 ecu but they also made them in both OBD0 and OBD1