P1450 I got this code?

2007 FORD FOCUS
122,000 MILES • 2.0L • 4 CYL • 2WD • AUTOMATIC
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BIGSTEPHEN
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I got this code and when I researched it, all the sites said to replace the Purge Valve. So I did. But two weeks later the code came back. So I checked to make sure the canister was fully installed, and it was. So I reset the code. 3 weeks later it comes back again. What, other than the purge valve could be causing this? I see no difference in mileage and feel no difference when driving.

Thank you in advance, Stephen
Sep 11, 2025 at 12:05 PM
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STRAILER
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This would be because the vent valve is stuck closed, here is the location so you can check it out.

P1450 - Unable to Bleed Up Fuel Tank Vacuum

Clear the codes once completed. Check out the images (below). Please let us know what happens.
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Sep 11, 2025 at 2:26 PM
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BIGSTEPHEN
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For clarification, do you mean the valve in the new canister? Thanks
Sep 11, 2025 at 3:54 PM
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STRAILER
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Did you replace the canister, I see you made sure it was fully installed, and if the canister is new did it come with a new valve? and if so this valve might be defective, I would put 12 volts to it to see if you can blow through it, this will confirm its correct operation.
Sep 12, 2025 at 9:21 AM