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2003 Audi A6 Please help! I'm pulling 14 problem codes!

Tiny
DRUMFREAK
  • MEMBER
  • 2003 AUDI A6
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 86,000 MILES
Help please! I am pulling 14 codes and here they are in order. 16815, 19759, 17535, 16684, 16688, 16490, 16486, 17537, 17544, 17546 16685, 16687, 16689, and 16890. I (kinda) know what they all individually mean, but not being a mechanic, I don't know what is causing them. Any help is greatly appreciated!

Dwayne
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Friday, May 30th, 2008 AT 8:37 PM

2 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Trouble codes start with "P" or "B" or "C" or "U" how did you get codes like these?
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Saturday, May 31st, 2008 AT 2:51 AM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
16815=P0431=Primary converter Bank 2 too inefficient.
16486=P0102=Mass air flow sensor -G70- signal too low.
16490= not found.
16684=P0300= misfire detected.
16688=P0304=Misfire cyl #4.
16685,686,687,690 are all misfires all cyls.
17535=P1127= Long term fuel trim too rich Bank 1 check for vacuum leaks
17537=P1129= Longterm fuel trim bank 2 too rich. Check upstrem 02 sensor, not switching.
17544=P1136= Long term fuel trim bank 1 too lean check vacuum leaks.
17546=P1138= Long term fuel trim bank 2 too lean, see above. Next time you test it, try with a generic reader, normal codes will display.
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Saturday, May 31st, 2008 AT 8:36 AM

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