You need to replace the EGR valve. The solenoid itself is bad. They're notorious on the honda v6. Make sure you get an OEM. Also, wouldn't be a bad idea to clean out the EGR port. Remove the intake manifold and you'll see a black carbon filled circle on the underside. Use carb clean to break down the carbon and start with a small drill bit by hand and clean out that port. Make sure to clean it thoroughly and not cut into the aluminum.