OBD II was introduced across the board in 96. It gives you a little better insight into the goings on of the vehicle, although that is an arguable subject. Basically, more sensors to monitor stuff = more $$$$ when they take a poop.
Good luck <img src="/forums/images/graemlins/kewl.gif" alt="" /> and welcome back <img src="/forums/images/graemlins/cheers.gif" alt="" />

Fasteddy's advice is occasionally sound...