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Sorry, I should have explained better. Like 78fordman said.....
BMP/BAR, MAP and EBP all should be around 14.7, atmospherc pressure at sea
level. If your higher up, the number will change and does change with the weather. A storm coming could lower it, high clear skys make it go up.. but for the most part, 14.7 is about right.
At idle EBP should be about 3-4 above BAR/BMP or around 17-18-19. I've programmed my scan gauge and adjusted everything to 0, why my EBP reads 3-4 at idle.
Not sure if just air blown thru the tube will clear the build-up, I used a piece of weed whacker line and shoved it through while twisting the line.
Ford's number at 650 rpm idle is 16 psia and the same at at 2500 rpm. My readings closely match Ford's "typical" values - I see 17 psia at 2500 rpms.
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