Hi guys,
Quick question, my avcr on full boost reads 1.35 bar but my fc commander reads 1.22! which one should i go 2? cheers boys
Steve.

 

I have the same with my AVCR/Commander although its no where near as different with yours.
I found that using silicon vacuum piping to the MAP sensors made it worse so I went back to OE ones (maybe the silicon ones expand slightly under pressure?). I would also clip the vacuum hoses in place where they attach to the manifold and sensors to eliminate any minor leaks

I have found through experimenting, that the PFC/Commander seems so be most accurate using the Subaru OE MAP sensor

Generally mine will show at peak boost:

AVCR: 1.66Bar
Commander 1.67Bar

so within +/- 0.01 of each other

Hope that helps

Chris

 

Cheers chris, will take info on board, much appreciate :-)
steve.