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Old 10-07-2014, 05:58 PM   #1
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P0442 and P0430

Hi guys:

About 2 weeks ago, the CEL lit up. The Durametric showed P0442. This is a minor fuel ventilation leak. I cleared the code and tightened the fuel cap. Today, the CEL lit up again with codes P0442 and P0430.

Many posts suggest the problem is a cracked fuel cap o-ring. My fuel cap is only a few months old so that's unlikely. I'm might replace it just to be sure.

Nonetheless, I'm looking for other suggestions. There is one common condition to when the CEL lit up. Both times, the fuel level had dropped quite low - about half way between the low fuel light popping on and empty. Not sure if fuel level is playing a role here or not.

Thanks for any suggestions you might have.

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Old 10-07-2014, 06:10 PM   #2
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Did you buy a Porsche OEM fuel cap? Needs to be original equipment otherwise you will have issues.
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Old 10-07-2014, 07:14 PM   #3
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Good point - yes I did
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Old 10-08-2014, 10:16 AM   #4
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Originally Posted by thom4782 View Post
Good point - yes I did
PM sent.

Regards,
paul...

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