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2010 2011 BMW 5 Series Forum F10 Can I get a CEL P0456 by changing the engine air filter? |
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11-12-2023, 01:52 PM | #1 |
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Can I get a CEL P0456 by changing the engine air filter?
I changed the engine air filter on my 2015 535i, and upon startup I got a CEL with code P0456, Evaporative Emission Systems Leak. As far as I know, this doesn't seem possible unless I knocked something.
Any ideas? I carefully re-installed the air box and reset the code, and it stayed off for a couple hundred miles. Then the CEL came back, same code. |
11-12-2023, 06:14 PM | #2 |
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Check your gas tank cap. Perhaps not sealing correctly. Issue is minor leak in fuel/evaporation system. Also check post #4 in this post. that purge valve is on the left side of throttle body. Perhaps electrical connection to it become loose when you were working on air box somehow.
https://f10.5post.com/forums/showthread.php?t=1829080 Last edited by Conserve; 11-12-2023 at 07:55 PM.. Reason: . |
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