yes im sayin that ds708 do not support obd1 but yet we have the adapter for 17 /23 pin, i have ask AUTEL to look at that software and to remember all 1991-1999 car will not be obsolete in some country yet we being fool by some of these adapter, the best scantool that i work so far is carman scan but i do like the ds708 , that is why i ask support to look that the obd1