Manifold Absolute Pressure (MAP) and barometric pressure (BARO) sensors, checking: Notes
WARNING: This page is about a different car, the 1999 Volkswagen Jetta, 1998 Volkswagen Jetta, and 1997 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
Both pressure sensors are located inside the Diesel Direct Fuel Injection (DFI) Engine Control Module (ECM).