Description A 2 bar map sensor suitable for turbo applications up to 1 bar (14.5psi) of boost pressure. These are a quality USA made sensor designed to replace the sometimes problematic genuine GM type. This is not a cheap quality sensor. The very same item is sold by big name ECU brands at a greater cost. The sensor produces a linear output between 0.6v and 4.9v corresponding to a range of 40kpa to 204kpa (aprox. 28psi of boost). Wiring details: Pin A = Ground Pin B = Output Pin C = 5v