scjarena
Registered User
So I swap in a 7.3 IDI into an 86 Ford, which originally had a gas engine. I just want to hook up a basic light to the glow plug controller. I see dozens of diagrams online, blue wire is for WTS. So when I turn my key on, I hook a 12V test light to the blue wire under the hood, to see if I get voltage right after I turn on the key. The GP works perfectly otherwise, I can hear it buzzing when its turned on, just no 12V at the blue wire. Is there something stupid I'm missing?