2007 Pontiac Grand Prix gt 3.8
Doing spark plugs and noticed this wasn’t plugged in. The one right next to it is plugged into a hose but there is nothing I can find that this should go into
The one with the hose is the MAP Sensor.
The one without the hose is the Barometric Pressure (BARO) Sensor. It doesn’t get a hose. It’s just open to the atmosphere.