Hyundai Elantra While not much larger than the accent, the Elantra offers similar room, but a sportier look and feel, as well as more power.

My check engine light P0456

Old 09-09-2008, 12:08 AM
Thread Starter
Join Date: Sep 2008
Posts: 1
Default My check engine light P0456

Ok so i have gone through the p0456 threads and needs some specifics. Long story short, don't think its my gas cap, need to know how I check my canister close valve to see if thats the problem. I have an 02 Elantra Gt. Where is it and what do I need to do?? Thanks!!!!
Old 07-30-2017, 09:00 AM
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Join Date: May 2017
Posts: 2
Default 2004 Sonata 2.4L where is the purge valve

Dear Forum members,

I received a P0456 code. Changed the gas cap and turned the code off. 50 miles later the code came back on. I'm trying to locate the purge valve to inspect. Any suggestions are greatly appreciated.
Old 07-30-2017, 02:17 PM
Senior Member
Join Date: Sep 2015
Location: Albany/NY/USA
Posts: 930

Sonata .. not sure ... on my Elantra ...
The purge line comes from under the left side and goes to the purge valve
Located between the fire wall and the engine ... near a hose going to the throttle

It is a normally closed valved.
When activated, the valve opens and allows the charcoal canister to purge its load of hydrocarbons.

This is not advice ... only trying to answer your question.
Good luck

Last edited by avisitor; 07-31-2017 at 10:35 PM.
Old 07-31-2017, 09:41 PM
Junior Member
Join Date: May 2017
Posts: 2

Thanks for your advice....
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