Appreciate the DIY - just took them out and cleaned today.
To add: I bought this $3 tester leads from Harbor Freight to activate the vanos on and off several times in the solution (i used carb cleaner) and hopefully loosen any debris stuck in between.
I connected the three leads as shown, then repeatedly tapped the remaining black lead to the ground post to activate the solenoid a few times submerged in carb cleaner until the discharge from the solenoid seemed clear.
Then I used compressed air to blow everything out then reinstall - I've yet to take it out on a test drive.