i have a 1995 Bucik LeSabre 3800
with computer and system that is pre OBD II and not OBD I ...it is called OBD 1.5 and was scanned in the day with a GM Tech2 system scanner....i heard our scanner is backwards compatable ..but it would not talk to this Buick..i am wondering if it needs a special cable with altered pin configuration or ? this vehcle has an OBD II ALDL connector
...thanx in advance for any help