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P0456 and flashing CEL

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Old 21 Dec 2012, 04:26 pm
PuterChickFL's Avatar
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Join Date: Nov 2009
Location: FL
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Default P0456 and flashing CEL

Hello all, today is the end of the world.......

Lately I've been throwing the above code when I crank up for the first time of the day. It will usually come on within the first 2 minutes while warming up. I will drive 100+ miles for the day and have no other issues. Also, sometimes I will sit in the car on a break, and I will turn the key on so I can roll down the windows and listen to radio and the CEL will flash sometimes. If I crank it it doesn't stay on.

What are some things I need to check?
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Old 21 Dec 2012, 04:32 pm
Obsessed Cruiser
Join Date: Sep 2001
Posts: 27,744
Default Re: P0456 and flashing CEL

Some older posts:

OBD-II Trouble Code: P0456 Evaporative Emissions System - Small leak detected


2002 Pt error code P0456
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Old 21 Dec 2012, 05:03 pm
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Default Re: P0456 and flashing CEL

Could be a bad gas cap. A leak with one of the vac lines. Check the big hoses first, these should be tight and no cracks. If you find any loose trim off a little off the end and re-install.

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