Ok I just purchased an ecu for my honda civic lx 1.5 automatic tranny. It had an Po6 computer in it orignaly, the one I purchased was the same model Po6 I foreget the rest of the numbers. Anyway I went to plug it in my car started right up no prob Yeah..... The problem started when I went to put in in reverse and the tranny was locked. For some reason I had a spare key with me so I put that in the shift lock area tried again and was able to shift gears perfectly. Does anyone know why this had happened? Also my brother told me to disconnect the car battery and then reconnect and see if it stays the same would this help?