Quote Originally Posted by Spaz View Post
I was on the phone a month ago with AEM. I did multiple volt meter testing to the sending unit. It is getting proper power but the original sending unit failed the ohm meter test. So I sent it in and literally just opened this brand new sending unit and installed it and bam it does the same thing.. reads 0 Boost.

The gauge has it's own power lead and ground and the connector plugs directly from gauge to sending unit... no way of messing this up. They even call it their easy plug and play gauge. . .
That's a shame as that's not a cheap gauge .So you did volt test but did they also have you ohm out the wires from the gauge to the sender ? I would suspect one of two things at this point and that would be a broken wire in the harness between the gauge and sender or a faulty gauge as I doubt that you have gotten 2 bad senders although I suppose anything is possible .I'd be on the phone with them again tomorrow if I were you .