How accurate is the OEM MAP sensor below 10 psi gauge? I am just looking for a way to validate my mechanical boost / vacuum gauge. I figured I could look at the data log from my Emanage Ultimate to compare what the gauge is reading. Thoughts on this?

 

Very, Very, accurate here is a data log from MugenRio (Mark) and until I got up to 11-11.5PSI it was very linear.

I have an extra Greddy sensor that is nearly new sitting in my garage if you need one from when I thought the map was not good enough.