the emmisions tested but they pluged it in and said that it had no connection. on 1998 GMC Savana 1500

so does anyone know why it wont connect to the test machine? Is there a fuse or a line I should be checking?

Asked by for the 1998 GMC Savana 1500
2 answers 1 comment
check for power at the diagnostic connector
I agree with gg. I think it is pin16 on the dlc, bottom right should have battery voltage.
ck fuses one is poss blown