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It reads -401 which is fine. The +.50 is boost which was your peak during your 7400rpm run, that would have been around 7.5 psi. That is low for max boost, but it depends on your other mods
It has been proven that the Settings 3 Pim scale and offset values are wrong. Some of us calibrate the map sensor so that the visual and logged boost pressures
are more accurate. Better to be accurate under boost than idle.
It's confusing because it says "mmHg" right there, but that's just showing the units for the vacuum reading. If you rev the engine into boost that display will change to "kg/cm2". The peak number is in kg/cm2 which is really close to bar.
10psi is about .7 kg/cm2. Which, BTW, is kilograms of force per centimeter squared .
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