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D2 - Engine Bay Everything under the bonnet |
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Thread Tools | Display Modes |
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2002 S8 - 17476 Intake Air Swtich-Over Valve (N335) Open Circuit
As the title states, I have a 2002 S8 with this code being reported by VCDS. I cannot for the life of me from endless searching discover where exactly to check for this sensor. Please help.
Last edited by |Chaz|; 19th July 2019 at 09:45 PM. |
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I'm guessing from this fault that you're in the US, possibly California, since Euro cars don't have N335 as far as I can tell from the reference material.
There is provision in the air filter box on some models for it to take a warm air feed from the inlet manifold to aid with engine warm-up. There would be a vacuum valve and likely an associated solenoid to control it. From your description I suspect N335 may control that, in which case I think the first place to start is to see if you do indeed have this feature on the airbox and start following vacuum hoses. |
#3
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Check out the following post on another forum. It shows two versions of how the vacuum system works, as well as a photo of the inside of the air box, and should hopefully help you resolve your issue.
http://www.vwaudiforum.co.uk/forum/s...vacuum-concern BTW Since this is your first post, get along to the Introductions section and introduce yourself to the rest of the forum. We also have a penchant for photos of members cars, so expect to see requests for them Welcome aboard.
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2001 A8 D2 FL 3.7 Q - LPG Conversion, Engine: AKC, Gearbox:FBB, Colour:LY5X Aqua Blue pearl effect, Interior:WJ light beige/dark beige valcona leather with burr walnut inserts My DIY jobs - Replaced alarm horn, Replaced Coolant Temp sensor, Updated RNS-D firmware, Installed Reversing Camera and Digital TV, Dashcam Installation, Retrofitted Rear Blinds, Auto-Dimming Rear View Mirror, Chrome Boot Struts Sold! 2008 S8 D3 5.2 V10 - Engine: BSM, Gearbox:KLW, Colour:LY7F Suzuka Grey Pearl Effect, Interior:Black/Black with Silver/Black valcona leather with carbon atlas inserts, Bang & Olufsen, Heated windscreen, Soft-close doors, TV, DAB, AMI, Quad Zone, Auto Boot, Auto dim Mirrors, Keyless entry, PDC with rearview camera, AFS II Headlights My DIY jobs - Fan Jet Windscreen Washers, Retrofitted Electric Side Blinds |
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Thank you for the help. I will do some more investigating when I make it home tonight. In the meantime I posted a thread as requested with a few pictures of said car.
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#5
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Ooh well found
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