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-   -   Secondary air system in 40v motors - electric air pump: anybody knows about faults? (https://www.audiworld.com/forums/a8-s8-d2-platform-discussion-8/secondary-air-system-40v-motors-electric-air-pump-anybody-knows-about-faults-1754470/)

Mikalai 09-15-2007 01:38 PM

Secondary air system in 40v motors - electric air pump: anybody knows about faults?
 
ECU shows a fault code: 17831, 17819 - air flow of secondary air system too low in both banks .

Air pump of that system has a filter.
Is it possible to clean one?
May be anybody knows how to take out that air pump?

PaulW 09-15-2007 02:19 PM

See: lunch meat post
 
<ul><li><a href="https://forums.audiworld.com/a8/msgs/19663.phtml">Lunch meat post</a></li></ul>

dimitristx 09-15-2007 04:14 PM

I had a different cause, though most likely it's a loose hose.
 
Had the same codes. Dealer found VAC Rod for intake not operating: Inflet Manifold Remove + Reinstall: Faulty design, found one of two of the intake manifold's vacuum diaphrams broken. Found the rollover valve in the intake manifold had seized. Removed the intake manifodl. Replaced the intake manifold.

Car is now driving much stronger!

Mikalai 09-16-2007 12:28 PM

Thanks! I'l check all lines.

pkrasusky 09-16-2007 07:11 PM

Um... Mikalai... do tell us more about your headlights. Bixeons? Look diff tho...

Mikalai 09-16-2007 11:21 PM

Yes, its are bi-xenon. Audi calls its "xenon plus"
 
Option
8ED - bi-functional headlight with gas discharge lamp, for driving on the right;
8Q3 - automatic headlight-range adjustment dynamic (self-adjusting while driving)

pkrasusky 09-17-2007 05:56 AM

Wow, thanks. Where are you located? Not USA? Just curious, thanks again. Looks AWESOME!


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