1sickvr6

ok the problem that I'm having is that while driving, my speedo stops working and then the coolant temp gauge drops downand stops working, at the same time. and then once in awhile, the speedo will jump up to faster than I'm going,and then will either stay at the correct speed and function properly,and so will the coolant temp, or drop down, and go back to not working at all. the other half the time both gauges just dont work. oh and also, when stationary and in neutral, if I give the engine a good rev the speedo will jump up to 60-80 and then back down. I've tried a different gauge cluster, and same problem. changed the vss sensor as well. any ideas guys? this is really annoying.

id like the drivers side dash undertray. is this from a left or right hand drive corrado?