I checked the PCV valve on our 2009 Honda Accord LX sedan and created a quick guide with pictures. Our car has the 2.4 liter inline four cylinder engine.
The procedure should be the same on other 2008-2010 Accord coupes or sedans with the 2.4L engine and possibly similar on the 3.5 V6 engine.
Here's the guide -
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I hope someone finds it to be useful.Cheers, Paul Michaels Ft. Lauderdale, FL