Well problem came back but didn't start until driving for 10 minutes, I'm guessing the idle problem is limp mode now to just work out the bouncing tachometer. I went prodding and poking around the engine bay pushing hoses and connectors to make sure all were on properly and the only one that seemed not on fully was the turbo actuator but not sure if this would cause tach bouncing. More reading and scrolling, not such a bad thing around these forums only when I get side tracked lol.