Exhaust fumes in cabin

Hi all,



I've convinced i'm getting fumes in the cabin, even when driving along, its subtle but i feel like i'm coughing more then I should.



I recently blanked the EGR, reused the gasket with some semi permeneant past and a blanking plate from dark ice, is there anyway to test if this is not sealed correctly? Maybe the gasket paste has burned off or something



I'm thinking of just repurchasing the gasket from rimmers, and using that and the blanking plate, should those together be sufficient? What have people used on theirs?



Anything else I can easily check?



Cheers

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