# What is this supposed to be plugged into **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** pontiac, grand-prix\ **Created:** [February 8, 2020, 10:59pm UTC](https://community.cartalk.com/t/what-is-this-supposed-to-be-plugged-into/158154 "2020-02-08T22:59:04Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Griff0057](https://avatars.discourse-cdn.com/v4/letter/g/ecc23a/32.png) [@Griff0057](https://community.cartalk.com/u/Griff0057)\ **Post date:** [February 8, 2020, 10:59pm UTC](https://community.cartalk.com/t/what-is-this-supposed-to-be-plugged-into/158154/1 "2020-02-08T22:59:04Z")
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 ![IMG_20200208_163124894](https://global.discourse-cdn.com/cartalk/original/3X/5/f/5f3fd9d6c3633f044aca32b6c2db3dad0569654d.jpeg) ---
**Author:** ![Griff0057](https://avatars.discourse-cdn.com/v4/letter/g/ecc23a/32.png) [@Griff0057](https://community.cartalk.com/u/Griff0057)\ **Post date:** [February 8, 2020, 11:00pm UTC](https://community.cartalk.com/t/what-is-this-supposed-to-be-plugged-into/158154/2 "2020-02-08T23:00:24Z")
![IMG_20200208_163134028](https://global.discourse-cdn.com/cartalk/original/3X/8/c/8cd73d14627218e5195864f67d728a3fe0466b78.jpeg) ---
**Author:** ![Bugmenot](https://avatars.discourse-cdn.com/v4/letter/b/7c8e57/32.png) [@Bugmenot](https://community.cartalk.com/u/Bugmenot)\ **Post date:** [February 8, 2020, 11:52pm UTC](https://community.cartalk.com/t/what-is-this-supposed-to-be-plugged-into/158154/3 "2020-02-08T23:52:55Z")
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.