 The fuel pressure testing kit will give you the appropriate fitting for the Schrader. And then, of course, you'll have to have a fuel can, a five-gallon can nearby. And what you do is with the key on, you'll have an engine not running, of course. You don't want to make an attempt to start it. You're going to then locate the fuel pressure, I'm sorry, the fuel pump relay, and you're just going to,