Stop in for a cup of coffee

Frank the weirdest thing my blazer has a OBD2 port not a OBD1 for soome reason and it is a 01/95 build, we googled how to get the codes out, went to jump the pins and it is a 2 plug not a 1 plug, WTF? then why would my cheap *** scannner not work on it and Miches did?:wtf: