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should the pcv valve be sucking air thru the top of it at all times? im getting a lean reading on bank 1 and bank 2 is this normal? if i block it with my finger the engine speed changes
you probably need a new valve. Trust me on this...purchase an genuine Audi brand. I just went through 2 inferior valves and finally paid the money for OEM. I purchased off ebay from an Audi vendor ("audi.exchange") as it was the cheapest with free ship. He shipped fast too.