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      10-24-2019, 12:25 PM   #16
F30ed
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Drives: F30 328i, X3 35M
Join Date: Sep 2015
Location: Chicago

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Quote:
Originally Posted by supreetsingh View Post
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Hello, can anyone tell me what is this big black hose ? I just found it to be open !
There is no image I can see, maybe only me.. Likely you describe charge pipe - the one that connects intercooler to Throttle body (MAF sensor is right there). Just pull the metal clip, push it back and fix with the clip - RMP jumping should go away. Do not push the gas mush to avoid turbo use and change that pipe to aftermarket aluminium version later.

Last edited by F30ed; 10-24-2019 at 01:03 PM..
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