Code error audi lean leak po171 running forums question engine pic part offline Audi diy: code p0171 system too lean (bank 1) Codes p0507 and p0171: i have a b4 audi a4 quattro. i have a cel
VW and AUDI Engine code P0171 P0174 P1136 and P1138 - YouTube
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Audi a4 running rough p0171 p0507 p2279 multi misfire
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![Audi A4 Running Rough P0171 P0507 P2279 Multi Misfire](https://i2.wp.com/us.autologic.com/uploads/media/1200x960/01/811-IMG_3464a.jpg?v=1-0)
![P0171 error 2003 1.8t help! vacuum leak I think - AudiWorld Forums](https://i2.wp.com/cimg0.ibsrv.net/gimg/www.audiworld.com-vbulletin/1280x720/picture3_826334c2821a0be4ef2fa94380add93d35dbc671.jpg)
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![A4 B6 - P0171 and Throttle Flutter - AudiForums.com](https://i2.wp.com/i.imgur.com/YoWTkM2.jpg)
![A4 B6 - P0171 and Throttle Flutter - AudiForums.com](https://i2.wp.com/i.imgur.com/jS33DOU.jpg)
![Error code PO171 running lean, leak and part question with engine video](https://i2.wp.com/www.audi-forums.com/attachments/b6-forum/7112d1361976682-error-code-po171-running-lean-leak-dsc03344.jpg)
![Audi DIY: Code P0171 System Too Lean (Bank 1)](https://3.bp.blogspot.com/_h6FtjngrO6Y/S92NkgRBEkI/AAAAAAAAA4Y/z-V0M6r_2hs/w1200-h630-p-k-no-nu/P0171-hose.jpg)
![Codes P0507 and P0171: I Have a B4 Audi A4 Quattro. I Have a CEL](https://i2.wp.com/www.2carpros.com/images/question_images/56911/original.jpg)