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Old 12-30-2011, 01:01 PM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
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Mein Auto: 02 BMW 525i M54 automatic
Quote:
Originally Posted by Steve530 View Post
I've added labels for that cap, the SAP one-way valve, and the SJP for clarity.
That addition makes the photo triply useful, for example for the SAP/SAS thread:
- How the secondary air system (SAS) and secondary air pump (SAP) and air valve, check valve, & electrical valve operate (1)
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