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?

by in Sheboygan, WI on July 29, 2013
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2 answers 1 comment
ANSWER by , July 30, 2013
check for power at the diagnostic connector
COMMENT by , July 30, 2013
I agree with gg. I think it is pin16 on the dlc, bottom right should have battery voltage.
ANSWER by , July 30, 2013
ck fuses one is poss blown