Hi, kindly be noted that Maxisys can only support cars from Year 1996 (including year 1996). Which OBD1 vehicle you was having issues on test it?

I have never seen where Autel has advertised covering anything previous to 1996. I have used the "OE" style diagnostics connectors many times. To offer complete coverage of vehicle 1996 and forward often the "OE" connector is required. Providing the cable adapters is not misleading. It is necessary for the tool to function properly on many makes. As the federal government forced the introduction of the OBD II connector many manufactures continued to use their proprietary connector and left limited use for the ODB II connector. So if Autel only offered the OBD II connector the tool would be very limited on Nissan's, BMW's, Toyota's from 1996 to about 2001. Thats just what I can recall I am sure there is some others out there. Reguardless of price Autel has the best complete coverage available, not to mention the price. I think as you use the tool more you will be very satisfied with it. We have an old snap on scanner for models previous older that '96.  Picked it up in a pawn shop for $400 bucks. Also, most of the older ones you can jumper a couple of wires at the dlc and it will flash the code for you. If I can help any more message me.

 I'm not all that  crazy about having to hook up the old OBD 1 style connectors on the older OBD 2 model year cars that still required using the old proprietary connectors  if you want to access more than Generic OBD2 functions and access the other modules of the vehicle.