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Discussion Starter · #1 ·
Hey folks! I have a 2015 Kia Cadenza Premium. Anyone else dealing with a reoccurring check engine light with a code P0456? It’s a “very small evaporative emissions leak” I replaced the gas cap to no avail. I found a replacement evap purge valve online for like $20, but wanted to see if anyone has any ideas before I try it.
Thanks in advance!
 

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Hey folks! I have a 2015 Kia Cadenza Premium. Anyone else dealing with a reoccurring check engine light with a code P0456? It’s a “very small evaporative emissions leak” I replaced the gas cap to no avail. I found a replacement evap purge valve online for like $20, but wanted to see if anyone has any ideas before I try it.
Thanks in advance!
Hi There, I just received an P0455 error gross leak evaporative emmisions system... I ordered a gas cap from kia parts, if that doesn't do it then next step is the purge valve.. Your on the right track, I don't know where the purge valve is or cannister...
 

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I had the same error too, replaced gas cap same error, took it to my regular mechanic, he found a different error code, but the fix was a plug that goes into the air intake just before the air filter area, he said it was loose . Give it a try , its right there in plain sight.
 

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Discussion Starter · #5 ·
I had the same error too, replaced gas cap same error, took it to my regular mechanic, he found a different error code, but the fix was a plug that goes into the air intake just before the air filter area, he said it was loose . Give it a try , its right there in plain sight.
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It would be a good future reference for any updates if the new evap purge valve cleared the code.
Update: the Evap Purge Valve DID NOT solve the problem.
 

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Discussion Starter · #6 ·
I had the same error too, replaced gas cap same error, took it to my regular mechanic, he found a different error code, but the fix was a plug that goes into the air intake just before the air filter area, he said it was loose . Give it a try , its right there in plain sight.
The evap purge valve didn’t help. I will try this today. Thank you so much for the suggestion! Maybe it’ll save my day!
 
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