When will people ditch the imperial units and use SI? Dabbling in foots, fingers, stones, inches, thousands etc. only messes up things. Even Brits (who invented bloody thing) converted to SI after lot's of moaning. So did NASA and US military
(NASA actually lost a Mars probe after someone mixed up foots and meters).
MAP sensors sense absolute pressure. So 0kPa is absolute vacuum, 100kPa is athmospheric pressure, 200kPa is "1 bar boost". Thus any boost sensed by MAP will register as 100kPa + boost. 140kPa is 0.4 bar boost or something like 6 psi or so.