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Multiple Unrelated OBD Codes

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Old Dec 22, 2015 | 10:17 PM
  #1  
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Default Multiple Unrelated OBD Codes

2009 A4 2.0 Quattro

CEL suddenly on and throwing 10 codes that don't seem related. Any idea on what could be a common issue here? I cleared them once and they all came back immediately. I do not notice any drive-ability issues. Here they are:
 
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Old Dec 23, 2015 | 04:37 PM
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Based on the codes I'd say you have a vacuum leak somewhere
 
Old Dec 26, 2015 | 11:55 AM
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Thanks - Yes it seems like it must be a problem common to all the codes. It's going to the shop next week so I'll see what they find and post the result.
 
Old Mar 3, 2016 | 04:38 PM
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Thought I'd post an update and experience since.

Turned out to be a blown fuse in the underhood tray by the ECU. I've attached a photo of the offending fuse. I took it in and the tech did a thorough look over. He had some concerns that it may be related to engine mounts but in the end just replaced the fuse. The car drove well for a few months then this past weekend the CEL came back on and the car is gutless.

The fuse was blown again so I replaced it and reset the codes.

The CEL has not come on again, but the car still has no power, like the turbo is not functioning.

Does anyone have a diagram of this fusebox? I can't find one online and would like to know what systems these are for. Any ideas on the problem of no power would be appreciated before I take it back to the dealer for a check.
 
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