Manifold absolute pressure sensor (431)
WARNING: This page is about a different car, the 2003 Saab 9-3 and 2002 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.
- Informs the control module of the pressure in front of the throttle.
- Used to correct the value from the mass air flow sensor during rapid load changes.