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What is this hose?

Old 04-16-2018, 02:00 PM
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Thread Starter
Join Date: Nov 2017
Location: Lexington
Posts: 19
What is this hose?

In this photo of the 2018 Fit engine, can somebody please identify the small hose just to the left of the throttle body, immediately before the MAP sensor?

From right to left, we have: airbox, MAF sensor, intake pipe, PVC "clean side" breather tubes (the metal tubes), throttle body, "mystery hose", MAP sensor, and intake manifold.
Attached Thumbnails What is this hose?-fit.jpg  
Old 04-16-2018, 03:13 PM
Join Date: Nov 2014
Location: San Jose, CA
Posts: 134
No idea, sorry.
Old 05-01-2018, 02:45 PM
Join Date: Aug 2015
Location: San Diego
Posts: 31
It goes to the purge valve for the evap system, which basically burns off gas fumes that form in the tank.
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