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DTC P1450 NEED HELP!

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Old Feb 22, 2002 | 07:06 PM
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DTC P1450 NEED HELP!

Hello. My 97 F150 4.6 set a code P1450 which translates to "Unable to release fuel tank pressure." Anyone have an idea what the most LIKELY defective part is that would cause this? I've checked the fuel/vent lines to and from the charcoal canister but none are cracked, broken, or kinked. Could the sensor that mounts on the canister be defective? I'm stumped!.
Thanks in advance for ideas/suggestions.
 
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Old Apr 8, 2002 | 11:57 PM
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Post DTC P1450 NEED HELP!

P1450 is "Unable to Bleed Up Fuel Tank Vacuum" according to www.obdii.com/ and my scanner's documentation.

Check to make sure your gas cap is sealing. If the o-ring looks warn or grayish in color, replace the cap.
 
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Old Apr 10, 2002 | 03:41 PM
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DTC P1450 NEED HELP!

On second thought... a bad fuel cap usually will throw a P0455 before a P1450.

Another cause could be the Vapor Management Valve is stuck open or kinks in a vapor line.
 
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Old Apr 10, 2002 | 08:24 PM
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DTC P1450 NEED HELP!

 
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