Don't you know guys, what kind of OBD are codes in my 1990 Fleetwood? They looks like:

P.0.1 turns to 9.1, and when I press HI and LO I can select P.0.2, P.0.3, P.0.4 and so forth, and each of them has a certain value. Is it OBD-1 or -2 or -3?

Thank you.