Thanks Tom, I did see that but for some reason the first picture wasn't there. It's what I needed. I have a red or pink wire coming from some where above my gas tank, I can't really see because I can't see above the tank. I took a multi meter and metered it to ground and had 78 ohms. I know the tank is full. I believe it is a Chevy tank. I thought it was supposed to be that high if the tank was empty. I guess I'll read the whole article!