R50/R53 :: Hatch Talk (2002-2006) Cooper (R50) and Cooper S (R53) hatchback discussion.

R50/53 Mysterious airbox line.

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Old Nov 14, 2023 | 06:17 PM
  #1  
darwich77's Avatar
darwich77
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Mysterious airbox line.






Hi guys…

I have a couple codes in the mini, P0234 and P1237 that I think will get fix by switching the Manifold MAP and TMAP sensors.

I was about to do that and I found that the line that comes from the airbox one portion is connected, but one seems like it’s Brocken? Is like a Y; If so, where does that line connects to, since I can’t find where it goes.

I posted the images of the line as best as I could.

thanks for the help.
 

Last edited by darwich77; Nov 14, 2023 at 06:26 PM.
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Old Nov 15, 2023 | 07:01 AM
  #2  
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Apparently you have the JCW intake, so the T connection splits the line so it can go to the bypass valve.
It's hard to tell in the pics, but I'm betting that's where the connection should be made.
Correct this and it will likely fix your codes.
 
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Old Nov 15, 2023 | 07:20 AM
  #3  
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darwich77
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Awesome.

Originally Posted by mrbean
Apparently you have the JCW intake, so the T connection splits the line so it can go to the bypass valve.
It's hard to tell in the pics, but I'm betting that's where the connection should be made.
Correct this and it will likely fix your codes.
Thanks for the reply
yes, I have the JCW intake (came like this)

so, one goes in to someplace in the engine, and the other one goes to the bypass valve?
That’s the hose I need?

(really new to trying to fix things, so explanation with apples and oranges is greatly appreciated)

have a great day!!
 
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Old Nov 15, 2023 | 07:38 AM
  #4  
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MCS4FUN
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From: "The Other Arizona"
Mine has the JCW airbox, purchased used and "de-flapped", thus without functioning vacuum lines and electrical wiring. To help understand the unique components of that airbox, view this link and especially the embedded PDF 12-pgs installation instructions doc: MotoringFile Review: The JCW Cold Air Intake
 
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Old Nov 15, 2023 | 07:49 AM
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+1 ^^
 
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Old Nov 17, 2023 | 06:59 AM
  #6  
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darwich77
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Awesome tip

Originally Posted by mrbean
Apparently you have the JCW intake, so the T connection splits the line so it can go to the bypass valve.
It's hard to tell in the pics, but I'm betting that's where the connection should be made.
Correct this and it will likely fix your codes.

I connected the line, cleared the code and so far has not come back!!!

thank you for the help!!
 
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Old Nov 17, 2023 | 07:00 AM
  #7  
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darwich77
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This information was really helpful, after looking at item, found where that line needed to go, connected and codes are gone so far!!!

you're the best, thanks!!
 
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