2 Bar Map Sensor Vs 3 Bar

I ran the 2 bar map sensor with my old commander c950 without any issues but it did not change the kpa scale.

2 bar map sensor vs 3 bar.

Formula for the gm 3 bar map sensor is v 8 94 14 53 i have no idea why it s 14 53 and not 14 696 rounds up to 14 7 but it works out on gm s chart every time. I currently have a 2 bar map sensor but have a naturally aspirated race engine that would normally require a 1 bar map sensor. It is possible that detroit is slightly above sea level and you can use 12 11 in the formula for 1 mile above sea level. 3 and 3 3 bar sensors are perfect for this because of their simple 3 wire connector reliability and accuracy.

So if the sensor has three lines of numbers it should be a 3 bar sensor. Conversely if the sensor has two lines its a 2 bar sensor. I ll also be goi. Whereas the 2 bar sensor on the right has only one additional line.

The same principles can be used to convert to a 3 bar os as well. 039 460 883 876 153 2 bar. 1 bar is for a normally aspirated engine 2 bar will handle a forced induction up to 14 5 psi of boost 3 bar will handle a forced induction up to 29 0 psi of boost 4 bar will handle a forced induction up to 43 5 psi of boost. 886 012 539 609 701 3 bar.

The sensor will measure each direction vacuum or pressure. In this video i show you how to use hp tuners to convert to a 2 bar sd os. 3 digit numbers for identification. 749 861 the logic module uses the manifold absolute pressure map sensor to determine the absolute pressure not the relative to atmospheric pressure of the air inside the intake manifold and the atmosphere barometric pressure.