Absolute pressure sensor 3 bar Turbo Boost Wire Plug Pigtail 12223861 for

These sensors respond to changes in manifold pressure and transmit the information to the ECU as a voltage signal range. A quality MAP sensor is crucial for your engine's performance. The MAP sensor is a true absolute sensor, meaning it allows your engine management system to properly compensate for altitude. The pressure inside your intake manifold is extremely important to the ECU. 3-bar MAP sensors accurately calculate boost pressure up to 43.5 psi (58 psi absolute), while also allowing you to have a smooth and repeatable idle.