I have a 1999 V70. This is my problem: The check engine light will come on,stay on for a few days then go off, stay off for several days,then come back on again. When the light is on the code shown is P0014,which could be a number of things. I there any way I can tell which one it is? Army there any DIY fixes for any of them?

 

I think its the timing of the engine DIY maybe if you buy the $260 camshaft alignment kit
Plus you have to understand how to do it. And if you just replaced the Timing Belt, well go back to the mechanic and tell him he did not placed it correctly because you can destroy the engine with bad timing. Here is the Camshaft Kit if you want to try your luck with that i would not. Camshaft Alignment Tool