Fuel tank pressure sensor

2006 CADILLAC CTS
97,231 MILES • 2.8L • V6 • 2WD • AUTOMATIC
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THE AUTO FIX
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Location of sensor. Have a p0451 code. Replaced the gas cap. Purchased sensor. Not sure if it’s on top of fuel tank or canister. Need your help.

Thanks
Jun 30, 2022 at 11:38 AM
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STRAILER
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It looks like the fuel tank pressure sensor is on the charcoal canister in the rear of the vehicle. Here is the location of the sensor and how to change it out in the diagrams below. Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed.
Jul 1, 2022 at 9:30 AM
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THE AUTO FIX
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Thank you for your help pertaining to this matter. You guys are a God sent. Will let you know my results.
Jul 1, 2022 at 11:26 AM
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THE AUTO FIX
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Would all engine sizes sensor location be on the canister design the wheel wells?

Thank you
Jul 12, 2022 at 6:49 PM (Merged)
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SQM
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Hello,

The fuel tank pressure sensor is located on the EVAP canister.
It is the same location regardless of the engine size (2.8L or 3.6L).

I have attached diagrams below for your reference.

Let me know of any questions.
Thank you.
Jul 12, 2022 at 6:49 PM (Merged)
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THE AUTO FIX
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You have commutated the sensors part of the charcoal canister. Not sure of the exact location of the canister. Would much appreciate your help with this matter.
Jul 12, 2022 at 6:49 PM (Merged)