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Check engine light.....>

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Old May 27, 2004 | 05:13 AM
  #1  
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Default Check engine light.....>

I bought a vag-com and this is in the fault code

VAG-COM Version: Release 404.0-S
1 Fault Found:
17545 - Fuel Trim: Bank 1 (Add): System too Rich
P1137 - 35-00 - -
or sometime its says system too lean.
The car has 29,000 miles and the engine light was coming on every other day. Now its every day.
It happens if I'm driving or stopped a a light.
Can someone tell what the problem could be or what to check?
thanks
Jim
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Old May 27, 2004 | 05:16 AM
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Good chance it's a MAF...
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Old May 27, 2004 | 05:20 AM
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MAF most likely or O2 Sensor
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Old May 27, 2004 | 05:23 AM
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Default Should I clean it with a circuit cleaner? ....>

By the way I installed the TTDA and it works great. This problem was happening with stock airbox. Th car runs great, because I feld the differents atfer the install. Oh another thing I just thought of, is the car is a little jerky when cold.
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Old May 27, 2004 | 05:25 AM
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Default Yup...try cleaning it...>

It will often bring a marginal one back to life..
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Old May 27, 2004 | 05:27 AM
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Audi extended the MAF warranty to 70K miles.
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Old May 27, 2004 | 05:27 AM
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I'll try it and thanks
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Old May 27, 2004 | 05:31 AM
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Default I had that code before I replaced my MAF...

Check M Block 032 to see if the second value (multiplicative trim) O2 readings vary by more than +/- 10%. This would point to the MAF sensor as the culprit.
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Old May 27, 2004 | 06:05 AM
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Okay thanks
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Old May 27, 2004 | 06:07 AM
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Default used to happen to me...i literally soaked the MAF in CRC electronics cleaner >>

and made sure it was dry as a bone before putting back in. That did the job and haven't thrown a DTC or CEL at all.
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