Well, if the pump turns on when you wire it to the battery its not the pump. If you are getting power to the positive lead that's good, but the circuit isn't completing which is why the pump isn't turning on.Okay the good news is, I finally have battery voltage running all the way to the fuel pump. With my mutimeter prods on the fuel pump connectors, I can read 11.5v or somewhere around there. Here’s the odd part, it’s still not kicking on the fuel pump. If I straight wire the same fuel pump connectors to the same battery the fuel pump will turn on. But it won’t turn on using the leads under the car, even though my multimeter shows 11.5v. So either way through under the car or via directly from a spare battery the pump is getting 11.5v, but it will only kick on for the spare battery. Am I looking at a busted pump?
Are you just touching the pump ground wire to other metal or are you using a separate piece of wire from the pump ground to a good ground on the body?Well when I touch the negative to the metal body unfortunately the pump doesn’t kick on. But the fuel pump relay beside the driver door clicks every time I touch the negative wire to the connector.