Please Help!!! While driving the entire dash shuts down (except for the digital gauges)Radio, AC, Gauges, steering wheel returns to the upmost position and the cooling fan starts running full blast! I am getting a error code of P0600 comm. link malfunction, I pulled over and restart the car and everything is fine for a few more miles then it happens again. I recently changed the valve cover gaskets and all of the spark plugs, the valve covers were leaking underneath the coils, I was told this could be the problem it ran fine for 2 weeks and it is now happening again, I checked the covers for leaks and found none. also after replacing the gaskets and plugs there was a sharp increase in power and mileage now it has dropped back off and is using much more fuel.

 

What was the solution to your problem, Poppell ?