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CHECK ENGINE LIGHT FOR P1128 (BANK 1 SYSTEM TO LEAN)

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Old 11-04-2010, 05:31 PM
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Default CHECK ENGINE LIGHT FOR P1128 (BANK 1 SYSTEM TO LEAN)

Check engine light for p1128 (bank 1 system to lean)
I RAN A VAGCOM ON IT AND THESE WERE THE RESULTS. IM NOT TO SURE WHERE THE PROBLEM WOULD BE EXACTLY THOUGH, I HAVE REPLACED THE FUEL FILTER, MASS AIR FLOW AND THAT DID NOT HELP. ANY HELP WOULD BE GREATLY APPRECIATED. THANKS

Address 01: Engine
Controller: 4B0 906 018 CH
Component: 1.8L R4/5VT G 0002
Coding: 16201
Shop #: WSC 63351
1 Fault Found:
17536 - Fuel Trim: Bank 1 (Mult): System too Lean
P1128 - 35-00 - -
Readiness: 0010 1001
Old 11-04-2010, 06:38 PM
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Originally Posted by tylerhager
Check engine light for p1128 (bank 1 system to lean)
I RAN A VAGCOM ON IT AND THESE WERE THE RESULTS. IM NOT TO SURE WHERE THE PROBLEM WOULD BE EXACTLY THOUGH, I HAVE REPLACED THE FUEL FILTER, MASS AIR FLOW AND THAT DID NOT HELP. ANY HELP WOULD BE GREATLY APPRECIATED. THANKS
I looked to see what may already be on the forum and came up with these three among many others to give you an idea of what else to check:

https://www.audiworld.com/forums/sho...d.php?t=338539
https://www.audiworld.com/forums/sho...d.php?t=337551
https://www.audiworld.com/forums/sho...d.php?t=277237

Don't know if you tried searching yourself, but it's best to use the "advance search". There you put in a keyword(s), in this case P1128, select the forum you want to search on the right - B5, and then hit search. You should end up with about 4 pages to get additional ideas.

Hope this helps.

BTW, I would not use CAPS when posting or you are going to get flamed. Using caps is like yelling or screaming at someone. Just in case you didn't know.

Good Luck!
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