![Does anyone know what this hose is and what it does? Car is a 2001 VW Golf GTI 1.8t awd engine, thank you : r/EngineBuilding Does anyone know what this hose is and what it does? Car is a 2001 VW Golf GTI 1.8t awd engine, thank you : r/EngineBuilding](https://preview.redd.it/qr9gd233z4q21.jpg?auto=webp&s=887e72e328f15d48428925c892b3021fdf554472)
Does anyone know what this hose is and what it does? Car is a 2001 VW Golf GTI 1.8t awd engine, thank you : r/EngineBuilding
![Audi A4 Questions - hello 2003 audi a4 1.8t had all my vacuum lines canceled so i seen a v... - CarGurus Audi A4 Questions - hello 2003 audi a4 1.8t had all my vacuum lines canceled so i seen a v... - CarGurus](https://static.cargurus.com/images/site/2015/05/02/14/33/pic-5510977311002334591-1600x1200.jpeg)
Audi A4 Questions - hello 2003 audi a4 1.8t had all my vacuum lines canceled so i seen a v... - CarGurus
![Engine Vacuum Lines Hoses Emissions Evap 98-05 VW Beetle 1.8T Purge Check Valve | CarParts4Sale, Inc. Galleries Engine Vacuum Lines Hoses Emissions Evap 98-05 VW Beetle 1.8T Purge Check Valve | CarParts4Sale, Inc. Galleries](http://assets.suredone.com/1517/media-photos/cp028397-engine-vacuum-lines-hoses-emissions-evap-98-05-vw-beetle-18t-purge-check-valve.jpg)
Engine Vacuum Lines Hoses Emissions Evap 98-05 VW Beetle 1.8T Purge Check Valve | CarParts4Sale, Inc. Galleries
![On a 2002 passat 1.8t where does the vacuum hose go {both ends} there is only one on intake manifold to? On a 2002 passat 1.8t where does the vacuum hose go {both ends} there is only one on intake manifold to?](https://ww2.justanswer.com/uploads/MA/MASTEROFMASTERS/2012-10-17_231207_img_0067.jpg)
On a 2002 passat 1.8t where does the vacuum hose go {both ends} there is only one on intake manifold to?
![I am very confused, after looking at all different mk4 1.8t diagrams, nothing matches up with my engine. I can't figure out where the hose should go. Any ideas? : r/MK4GTI I am very confused, after looking at all different mk4 1.8t diagrams, nothing matches up with my engine. I can't figure out where the hose should go. Any ideas? : r/MK4GTI](https://preview.redd.it/xqbsc0cpnj451.jpg?auto=webp&s=e273ca8b95ae27700aafe826b064dd5fa1faeeb0)