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johnrando
07-31-2021, 11:45 AM
When changing out cooling systems hoses and throttle body, I came across a hose that I don't know what it connects to. I do have a supercharger so I don't know if that has something to do with it. Any ideas? Attached a youtube vid

https://youtu.be/wCmxJSUS2eE

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trancenation
08-03-2021, 07:10 PM
i had the same issue when replacing my ccv, it gave me a misfire, there is a connection underneath the intake manifold that this plugs into.

See this link: https://www.bimmerfest.com/threads/underside-of-intake-manifold-cylinder-3-4-misfire.960024/
GeorgeH
08-04-2021, 05:05 AM
i had the same issue when replacing my ccv, it gave me a misfire, there is a connection underneath the intake manifold that this plugs into.

See this link: https://www.bimmerfest.com/threads/underside-of-intake-manifold-cylinder-3-4-misfire.960024/

100%, it wraps around the underside of the intake... I've definitely knocked that off before, not a fun fix lol.
johnrando
08-04-2021, 08:42 AM
i had the same issue when replacing my ccv, it gave me a misfire, there is a connection underneath the intake manifold that this plugs into.

See this link: https://www.bimmerfest.com/threads/underside-of-intake-manifold-cylinder-3-4-misfire.960024/Awesome, thx! (And, thx for the 2nd George).

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johnrando
08-04-2021, 12:26 PM
100%, it wraps around the underside of the intake... I've definitely knocked that off before, not a fun fix lol.Any good tricks for re-attachment?

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johnrando
08-06-2021, 06:23 AM
Turns out it was a diff. hose (having to do with supercharger setup) that got loose, and it was not hard to reattach. Phew! [emoji3]

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sillieidiot
08-08-2021, 08:46 PM
It was the fuel breather vent hose. Luckily on JR's car, we were able to reach it sitting behind the ICV