Please help. I am new to this forum, I have a 2008 OB 2.5i and while I was doing head gaskets I disconnected the main harness (I thought I had to and the battery was out) and then tried to move (push) the car, but it would not go out of park, so I reconnected the battery to get it out of park. Then after all this work, I got the "err hc" on the dash and no cranking. Did I fry the computer? I can't remember if I reconnected the harness when trying to move the car. Thanks!