quattro Digest, Vol 5, Issue 92

David Kavanagh dak at rochester.rr.com
Tue Mar 23 19:12:53 EST 2004

I just got the codes pulled. I get the following;
17965 - charge pressure control: positive deviation   P1557 - 35-10 --- 
17547 - fuel trim: bank 2 (add) : system too rich    P1139  - 35-00 - -
(and 17545, which is the same as the last one, but for bank 1)
I'm told the first one is about the purge valve (which lets gas vapors 
from the tank into the intake air.
I'm told the second two could be either the forward O2 sensors, or the 
MAF sensor. I'd say more likely the MAF than 2 O2 sensors at once, esp 
at 54K miles.
What is the procedure for MAF coverage, if that turns out to be a problem?

Thus Spoke quattro-request at audifans.com:

>Date: Tue, 23 Mar 2004 05:18:40 -0800 (PST)
>From: joel nevin <joelnevin at yahoo.com>
>Subject: Re: [A6] check engine line
>A lot of 2.7t's have been having 2 issues.
>Bad temp sensors which would trip the CEL
>and a bad MAF(Mass Air Flow) sensor.
>The MAF is covered under audi warranty until 70k, the
>temp sensor isn't, but you have a 1 yr warranty.
>I have the codes somewhere if you need them.
>As I just had mine done.

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