3 bar VS 4 bar
 

I tough I bought an Omni 3bar map sensor but received a Omni 4 bar map sensor instead. Does this makes a big difference ?

no, it'll just have to be scaled differently in your tune. let me know if you need the numbers i can provide them for you, or you can find them for all 3 omni sensors in the ecutek docs.

Well ok thanks! Maybe my tuner's already know that! I just don't want to arrive there and then be told that a don't have the good map sensor lol...