Inlet Manifold.
Manifold Absolute Pressure Sensor.

PRESSURE SENSOR

Manifold Absolute Pressure Sensor
A failed Manifold Absolute Pressure Sensor will often have no noticeable symptoms beyond a check engine light, but it does cause your 2011 Volvo XC90 to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and Volvo genuine parts.