I already have a pressure sensor (non greddy) 3 BAR MAP outputs 0 - 5v up to 30psi.
I want to know if I can just get the greddy harness to wire up to an Emanage Ultimate. Seeing conflicting sites and graphs that show their Greddy sensor as 3 bar, but the output voltage is -.5 to 4.5 . Another site shows it as 4 bar (3 above atmosphere, and going to 43 psi)
So…anybody know if I really need to get their sensor in addition to the one I already have? Savings would be about $100
Let me try this another way. Is 3 bar to 30 psi or to 43 psi? PLX shows their 3 bar sensor as going to 30, Greddy to 43. I believe the 43 includes the first block for atmosphere…but what’s the deal?
Some map sensors measure vacuum ( gm type) soMe only measure boost
i see. i believe they both measure vac. Plx posts a chart, and Greddy I found one online, but its not from their corp site. I see in some product descriptions that they go to 43psi. So I called greddy. The guy said it was 0-5v and went to 43 and he said that was a standard 3 bar. But he has no information to provide because apparently all of their documentation is in japan.
This is what I have from the interwebs:
PLX:

Greddy (not from official site)

Even if they are different, can you set the parameters in the emanage ultimate?