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Old 01-23-2009, 03:03 PM   #1
Severian
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Default What does the Pressure Hose do?

I spotted the end of what used to be my pressure hose (#9 in the following diagram) that's non-existent any more. It completely disintegrated in my hand.
http://www.realoem.com/bmw/showparts...59&hg=11&fg=50

Can anyone tell me what it does? Is it important to replace? I live in Indiana where we don't have emissions regulations.

As a side note which is possibly related I get a Check Engine error code for "Secondary Air Control" and my secondary air pump stopped working about 2 years ago. I never cared to replace the $220+ part since it basically improves emissions from cold start, but if this $23 hose is the cause of my non-functioning air pump, maybe I could replace it.

Anyway, thanks for any info.

sev
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Old 01-23-2009, 05:06 PM   #2
tiFreak
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since it's connected to the SAP I'm sure it affects it, but since your SAP hasn't worked for 2 years before the hose got messed up, I'm going to say, just replacing the hose won't fix the SAP
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Old 01-23-2009, 06:49 PM   #3
Severian
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Quote:
Originally Posted by tiFreak View Post
since it's connected to the SAP I'm sure it affects it, but since your SAP hasn't worked for 2 years before the hose got messed up, I'm going to say, just replacing the hose won't fix the SAP
Thanks!
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