Nope, its because all pressure is termed absolute.

Why do you think a 2bar sensor is called a 2bar sensor when it can only see a bar of boost? Same for 3,4 and 5bars. Anyone think, marelli, bosch, lucas and maybe Siemens are also twats who dont have a clue?

The terminology is correct, its ONLY the automotive world that somehow made an arse of it "Boost" is simply pressure over and above atmosphere,a nd atmosphere is approx 1bar. Thus .1bar of boost is actually 1.1bar absolute.

There.