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Codes for a faulty gas cap

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Old 10-30-2019 | 07:28 AM
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Question Codes for a faulty gas cap

Would a faulty gas cap generate it’s own, or a specific code? Or can it generate a variety of things? Thanks, Doug
Old 10-30-2019 | 08:57 AM
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Not sure.

I know with the prior series, 987/997, a loose oil cap and gas cap threw the same code. It's basically a vacuum leak.

Post the code you're getting.
Old 10-30-2019 | 10:31 AM
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P0457 for loose gas cap?
Old 10-30-2019 | 11:35 AM
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Originally Posted by LexVan
Not sure.

I know with the prior series, 987/997, a loose oil cap and gas cap threw the same code. It's basically a vacuum leak.

Post the code you're getting.
Thanks LV ... Codes are from the downstream O2 sensors?
Old 10-30-2019 | 11:36 AM
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Originally Posted by the_buch
Thanks LV ... Codes are from the downstream O2 sensors?
I don't think it's the gas cap, then. Any mods?
Old 10-30-2019 | 12:11 PM
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Yes, exhaust which is getting sorted today. I was just making sure it wasn't something simple before hauling the bumper off again Thanks, Doug



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