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1999 Audi A6 Quattro Automatic 100k Miles P0441 P0455 Check Engine Light?

I been trying to attack this problem for a while.
VAG-COM Version: Release 409.1-S
Chassis Type: 4B – Audi A6 C5
Scan: 01,02,03,08,15,16,17,35,36,37,45,55,56,7…
————————————–…
Address 01: Engine
Controller: 4D0 907 551 AH
Component: 2.8L V6/5V MOTR AT D03
Coding: 06252
Shop #: WSC 02325
2 Faults Found:
16825 – EVAP Emission Control Sys: Incorrect Flow
P0441 – 35-00 – -
16839 – EVAP System: Large Leak Detected
P0455 – 35-00 – -
Readiness: 0000 0100
————————————–…
Address 02: Auto Trans
Controller: 4B0 927 156 G
Component: AG5 01V 2.8l5V USA 8509
Coding: 00000
Shop #: WSC 00000
1 Fault Found:
00526 – Brake Light Switch-F
27-00 – Implausible Signal
————————————–…
Address 08: Auto HVAC
Controller: 4B0 820 043 Q
Component: A6-
Note: Excessive Comm Errors
For the CEL it keeps coming back everytime i erase it after 2-3 trips. I tried a new gas cap but that didnt help. After reading previous posts it might be related to the N80 valve.
I have a VAG-Com and AllData. All Data gives instructions for N80 valve using VAG 1551 or VAG 1552 would the same numbers and measuring block apply for using a VAG Com ?
Can anyone give any other suggestions about these error codes or what else to check and test?
Also can someone point me to where the Canister Purge Solenoid N115 and or what it looks like also where the
Evaporative Emission Control Canister is and what it looks like.
Thanks!

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This entry was posted on Tuesday, February 9th, 2010 at 6:05 am and is filed under sys files. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

2 Responses to “1999 Audi A6 Quattro Automatic 100k Miles P0441 P0455 Check Engine Light?”

  1. Nick Name says:
    February 9, 2010 at 6:05 am

    looks like a ross tech dump. good stuff. usually IS the gas cap. the solenoids rarely fail. pull the plastic cover off the intake manifold and at the back of the motor, near the firewall, CAREFULLY inspect ALL the small cloth covered vacuum lines for cracking/spitting and replace anything iffyh. diagnosing the evap system is time consuming but you can find instructions at http://www.audiworld.com using the search function for p0441.
    start by looking over those vacuum lines… 8-)

  2. Heavy Metal Bands says:
    February 9, 2010 at 6:05 am

    You need to make a shop visit and get a smoke test done to find the leaks.
    That is the ONLY suggestion for this.

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