Usually its one of the following when your shocker only gives you those puff noises.
-fresh battery, solenoid cant open correctly when there is not enough power
-re-lube bolt and check o-rings
-when you maintained and took apart your solenoid, make sure you reassembled the endcap in the right way.
-reset board to factory settings (those may not be as efficient/ fitting for your specific gun but should always work)
-try different tank, ASA and inline reg
-check
http://www.zdspb.com/tech/mguide/sho...neumatics.html to see if you encounter any of the described issues.
go step by step