Thanks. Im in the same boat as you with trying to diagnose a pinging type sound between 2 to 3,000 RPM and have been reading a lot about the prior gen DISA issues. Im thinking of pulling mine this weekend to see if any flaps appeared loose, but now discouraged with how different ours are to the prior gen.
Last edited by leebermeister; 11-09-2012 at 01:15 PM.
Reason: Me = Dumb.