I'm just trying to see where this mysterious shredded vacuum line goes,, and maybe it'll turn my cel off.. I ran it from the farthest to the rear nipple thats under the manifold to the combi,,, because the hose looked like thats the direction it was headed and it seemed to reach, and they were both empty nipples.. and the remnants of the hose that was still on the nipple looked like it was the same diameter hose line and same breed...