We recently replaced the intake and exhaust valves in our 1999 Volvo S70 and now it is running rough and showing an engine code of POO14 What is causing this and how do we fix it?

 

P0014 ECM-641A Camshaft control, exhaust Faulty signal

Seems,from a quick search, that there must be something with the timing, this code appears after a timing belt change quite often, if the cam moved out of timing marks

 

I figured out what it is. It is the VVT (Variable Valve Timing). The engine is completely back together, now can someone tell me how to go about fixing this problem?