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Code P0455 Check engine/fuel cap open

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Old Mar 26, 2023 | 11:25 AM
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Uplift
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2003 G55-wagon AMG
Code P0455 Check engine/fuel cap open
I have done the following:
Change the fuel cap and nothing.
Installed a new Charcoal canister and nothing
Installed purge valve and nothing
It passed the smoke test and the codes come back after a few miles. I checked the fuel neck and no smell or leaks.
Any advice would be helpful.

Thanks

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Old Mar 27, 2023 | 04:33 PM
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JD101b
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2015 SL550, 2017 GLS 550, 2010 G550, 1995 E320 Cabriolet
The same problem happens with my G550. I've found that waiting for the problem to go away is typically the best solution
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Old Oct 2, 2024 | 04:17 PM
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Edmundo Amado's Avatar
Edmundo Amado
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2014 ML 450
Check this post, it might help:

https://mbworld.org/forums/g-class-w...dvice-cel.html
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Old Oct 28, 2024 | 10:20 PM
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E350
Any chance you mind sharing your setup for wheels? And did you need a lift?

Running into similar issue, just did a few of the same… would yours intermittently go on/off?
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