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code p0455 evap system

i have a 98 S70 N.A. and have been periodically getting a P0455 code thrown (evap system leak - large). I reset it and every once in a while I get it again. seems to be when it is hot and slow traffic/sitting idleing. I has been happening before and after i replaced the air pump/SAS valve, and also both oxygen sensors. anybody know what I should look for? btw the flame trap is clean.








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    code p0455 evap system

    Go to your Volvo dealer & buy a new gas cap. I was getting the same code every couple days from my 98 S70 n/a. I would reset it, but it always came back. Replaced the gas cap with a new one & its hasnt been back in over two weeks now.








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    code p0455 evap system

    Check your gas cap to make sure it's tight and the gasket isn't falling apart

    bl.







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