Originally Posted by aviator327
Will it work on my 92 SE and what is an ODB I car?
OBD or On-board Diagniostics is the protocol that most automakers have standardized on for pulling information from the ECM. OBD I was the first version available. It offerered basic retrieval of codes and diagnostics for those (mostly dealerships) with the right tools. OBD II (available since 1996) has a ton of info available, some in "real-time". For example, you could drive around with an OBD II scanner connected and it could read almost every value of every sensor on your car.