2011 GMC Acadia P0451 Evap Emission system sensor switch

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oneal315
Posts: 1
Joined: Sat Jun 17, 2017 9:22 am
Vehicle: P0451

2011 GMC Acadia P0451 Evap Emission system sensor switch

Postby oneal315 » Sat Jun 17, 2017 9:27 am

How do I replace my Evap emission system pressure sensor switch trouble code:P0451 on a 2011 GMC Arcadia!


kev2
Posts: 6580
Joined: Sat Aug 29, 2009 4:24 pm

Re: 2011 GMC Acadia P0451 Evap Emission system sensor switch

Postby kev2 » Sat Jun 17, 2017 5:41 pm

Why are you changing the FTP sensor?
What is voltage on sensor signal line?
Any other codes I often see other issues with this code.
Any recent work?

Anyway the sensor is on top of fuel tank, R&R tank to get to FTP sensor.
#1 in attachment
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FTP sensor.pdf
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