%META:TOPICINFO{author="blundar" date="1078515120" format="1.0" version="1.1"}% Absolute Pressure refers to pressure measurements made on a scale where Absolute Vacuum = 0. *

• Atmospheric Pressure is approximately 14.7psi at sea level, measuring absolute pressure.
• 10psi of Boost is approximately 24.7psi (14.7 psi Atmospheric Pressure + 10psi Boost)at sea level, measuring absolute pressure.
• Similarly, 30psi on the tire guage for your car is approximately 44.7psi Absolute Pressure(14.7 psi Atmospheric Pressure + 30psi tire pressure).

Column 10 is approximatly atmospheric pressure, slightly less due either to interpolation or the fact that even at WOT there will be some vaccuum.

Column 1 is somewhat arbitrary, and not true zero aka absolute vaccuum.

See also Map Sensor for the values the OEM Map Sensor is capable of reading.

%META:FILEATTACHMENT{name="abs_pressure_crome.jpg" attr="h" comment="screenshot of crome showing absolute pressure" date="1078515009" path="C:\Documents and Settings\Administrator\Desktop\temp\wiki\abs_pressure_crome.jpg" size="25816" user="blundar" version="1.1"}%