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S Car Model Line Audi S4, Audi S6, and Audi S8..Audi's track-ready touch on each of the popular sedans

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  #1  
Old 05-10-2007, 09:11 PM
1st Gear
 
Join Date: Oct 2006
Posts: 12
Default Check Engine Error code P0491

I had a friend check my 04 s4 and i have 2 error codes:
P0491
P0492
....Insufficient Air flow...or something like that.

What am I up against here?
  #2  
Old 05-10-2007, 09:54 PM
2nd Gear
 
Join Date: Apr 2006
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Posts: 1,312
Send a message via AIM to TKneedsS4
Default RE: Check Engine Error code P0491

Ughhh i forgot i wanna say one is leaidng towards your MAF. but i forgot sdamnnnn
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  #3  
Old 05-11-2007, 05:08 PM
1st Gear
 
Join Date: Oct 2006
Posts: 12
Default RE: Check Engine Error code P0491

here is a sensible reponse
http://www.audiforums.com/m_503201/tm.htm
  #4  
Old 05-11-2007, 05:11 PM
 
Join Date: Nov 2005
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Posts: 12,826
Default RE: Check Engine Error code P0491

secondary air system
Old 05-11-2007, 05:11 PM
 
 
 
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a4, a6, air, audi, check, code, codes, engine, error, mean, obd, p0491, p0492, secondary, system


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