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Message: <blockquote data-quote="haywire" data-source="post: 31111" data-attributes="member: 16474"><p>Hi guys, turned out the engine check light fault that was triggered on my car since before raya was actually a ventilation leak.Scanned at Bomin earlier and confirmed that the error comes from the CVV or its connecting hoses, can loudly hear hissing sounds from that area indicating an air leak.This has caused misfiring at various cylinders. When scanned with PA Soft the error came as 'O2 Sensor controller mixture too rich'. I thought originally the error came from faulty o2 sensors but its now confirmed that it was air leak.<img src="http://static.bmwfans.info/images/epc/MzE4MDBfcA==.png" alt="" class="fr-fic fr-dii fr-draggable " style="" />Item 1-7 above will need to be replaced. 1. Pressure Regulating Valve 116175015662. Vent Pipe 116114325593. Connecting Line 116175045354. Vent Hose 111575326496. Vacuum Hose 117275453237. Return Pipe 11617504536I am not sure if Distribution Piece 11611440318 (item 5 below) will need to be replaced or not.<img src="http://static.bmwfans.info/images/epc/MTM4MzU5X3A=.png" alt="" class="fr-fic fr-dii fr-draggable " style="" />These  are the parts assembled off the car<img src="http://www.marianresearch.com/images/CVVParts.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />Probably only one of that various part is leaking, but this is a nearly 10 years old car and its a good idea to change the whole set.Has anybody attempted this job themselves? I can get the part quite reasonably priced.I read about the whole process at <a href="http://forums.bimmerforums.com/forum/showthread.php?t=1528460" target="_blank">http://forums.bimmerforums.com/forum/showthread.php?t=1528460</a> but quite useful to know from experienced members here.</p></blockquote><p></p>

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