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po401 code

i have a 2001 Pontiac Bonneville Se 3.8 it has the po401 code need help please

i have a 2001 Pontiac Bonneville Se 3.8 it has the po401 code i replaced the erg valve blew air into both air ways of the erg pipes and they both are clear and can't figure out why i keep getting the po401 code i can't get rid of it what else can i do or what am i doing wrong please help

tobystickney@yahoo.com

if you used an oem factory valve, they always work, so it wouldn't be that (but a chinese copy is often junk.) Now if you used an oem one, often the feed hole clogs up inside, you'd have to remove the valve again, and clean that out with compressed air, solvent, and I use an old speed cable and drill to drill out carbon

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