Originally Posted by Vetteman61
OBDII is the type of computer used to hook up to the car to diagnose when a check engine light code comes up. That is what the OBDII pertains to. To my knowledge they switched to this type at one time and a certain year of car either would be an OBDII or it would not. I don't think they had a year where some were and some weren't, but I could be wrong.
Rumor is that OBD-II was mandatory on '96 and up cars, but the switch was made some time in '95. According to the F-body crowd, it is not unusual to find an OBD-II set up in a '95 LT1-powered car.
Originally Posted by Mutt's37Buick
I did find on the buickforums.com that the '96 Buick Roadmaster was the first year was OBDII compatable. Previous years had OBD1.
Obvously these diagnostics are very helpful, but can anyone speak to questions I have:
1) Since the OBDII diagnostics are more capable, do they also add difficulty when performing an engine/transmission swap to a different vehicle?
2) Will I have to also swap more systems from the donor car in order for the engine/transmission to work properly.
3) I had planned on swapping the instruments as well. Would OBDII make this more difficult to swap?
I would definitely recommend visiting the Impala SS Forum
to get more info on the Roadmasters. Lots of knowledgeable guys there. And there is also LT1Swap.com
for more general swap info.