guys i need help. i just put a b18b(LS) in my 5gen hb, full swap, tranny, shift linkage, but not the ecu. still running my stock dx ecu. but my 3rd gear grinds at high RPM. 3000+. what do i need to do about the tranny? and also does any know a cheap way to convert obd1 to obd2??? any help would be great. thanks guys.