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CEL - Multiple Codes

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  #1  
Old 12-17-2013 | 07:18 PM
DJLishis's Avatar
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Question CEL - Multiple Codes

Alright, about two weeks ago my CEL came on and since then everytime I get gas whether it $20 worth or a full tank my car has trouble starting right after filling up. Strange. So, I went and got my codes pulled at Auto Zone today...This is what I got.

P0171
P0442
P0455
P0456

Any ideas?? I drive a 2007 Audi A4 2.0T with about 70,000 miles on it.
 
  #2  
Old 12-18-2013 | 08:44 AM
rhodes991's Avatar
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From: St. Louis, MO
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Most likely the N80 valve (purge valve). Sits on the top driver side of the engine back towards the firewall. Cost about $20 to $30 for the part (plus new hose clamps) and takes just a few minutes to change.

Here is the part: http://www.ecstuning.com/Audi-B7_A4-...urge/ES281033/

I changed mine about two months ago (exact same issue you explain). I had to give the dealer the mfg part number as they could not locate a purge valve or N80 valve.
 

Last edited by rhodes991; 12-18-2013 at 08:47 AM.
  #3  
Old 12-18-2013 | 01:24 PM
DJLishis's Avatar
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Thank you!! I'm gonna try to get one from the dealer today.
 
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