P1450 I got this code?

Tiny
BIGSTEPHEN
  • MEMBER
  • 2007 FORD FOCUS
  • 2.0L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 122,000 MILES
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
Thursday, September 11th, 2025 AT 12:05 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
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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Thursday, September 11th, 2025 AT 2:26 PM
Tiny
BIGSTEPHEN
  • MEMBER
  • 2 POSTS
For clarification, do you mean the valve in the new canister? Thanks
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Thursday, September 11th, 2025 AT 3:54 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
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.
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Friday, September 12th, 2025 AT 9:21 AM

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