Greddy Boost Controller Question

I installed my greddy boost controller today. I set the controller at 14psi(hi). The thing is on my boost gauge and on the contoller it maxes out at 12psi. i was woundering about the way I installed it. The boost gauge and boost controller are both hooked up to the same fpr line. would this have anything to do with it? thanks

what i ment to say is it ok to have both the boost gauge and boost controller running off one line.

I wouldn't run a boost controller (or anything if possible) on the FPR line. Any leak on that line will cause you to run lean, so it's best to keep it a solid run of high quality vacuum line.

About your specific problem, I don't think using the FPR line has anything to do with it. You should start by posting which of the Greddy EBCs you are using, since there are at least 4 different ones (A, B, spec 2, type s). I have a feeling that this is a spec II based on your wording, and I have experience with the old skool B and the newer type s.

sorry about that its a profec b-spec2. what line do you recommend for hooking up the boost controller to? as for the boost gauge, the fpr is ok for that, if no where? thanks a lot

You are on your own with that steaming pile of donkey biscuits ;)

The best place to tap into is the BOV line, the P port on the TB, or a fitting that you add yourself. Losing any of those things would not be catastrophic.

so leave the boost gauge tapped into the fpr and tap the boost controller into the b.o.v. line?

I wouldn't run a boost controller (or anything if possible) on the FPR line. ...