I've got my LB7 into my '85 and its started and running, but most of my gauges aren't working. When I turn the key on, the SES and glow plug light come on as they should, but my DIC, temp gauge, fuel gauge (which shows full, even though the sending unit isn't even plugged in) and tach aren't working. My oil pressure and volt meter are the only ones that work. Also, the truck got broken into before I pulled the motor, and in the process of stealing my CTS, they cut the OBD plug off. Could that be causing this, or should I start looking elsewhere?