Subaru Genuine Manifold Absolute Pressure MAP SensorGenuine Subaru MAP Sensor to suit 2015 2021 Subaru WRX VAG 2013 2018 Subaru Forester 2. 0XT. A failed Manifold Absolute Pressure Sensor will often have no noticeable symptoms beyond a check engine light, but it does cause your Subaru to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer approved repair processes and Subaru genuine parts.