Solenoid or canister?

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bangon

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Still getting evap code P0449. Canister is at back of yukon. Is there a way to test if solenoid is working or if it's the canister? We blew out the canister as best we could but code still comes up after clearing it. Thanks for all the help
2007 yukon denali 6.2
 

Fless

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Read through the short thread below and that should help. @swathdiver posted the official test procedure if you choose to use it.

 

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