[Bad89stang]

O.K., checked for the 5V reference between the black and orange wires. I get .09V between the two. When I move the ground wire of the DMM over to an engine ground it goes to 5.09V with KOEO. What does this mean? Bad ground? If so, where do I check first?

I check the wires at the MAF as well and could not get 5V with any of the wires even using an engine ground. Which color wire am I checking on the MAF? I tried the red and got 12V. The other wires I got nothing.