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Code P1491 is not the PVC Valve.It is the Vacuum Cut Valve Bypass Valve. Which is located above and away from the egr canister under the driver side
rear bumper it is round and have about 3 hoses connected to it. if it is
from a check engine light that says look at vacume cut valve check the
egr canisters purge valve some times they stick and throw the wrong
code
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