I just bought a Volvo V70 1999 2.4T

There are codes which are for P0014, P0300B and P0134. The car idles really rough... I clear the code and it smooths out for a second and then idles rough again. I replaced the Rear Cam POS sensor, and it still idles just as rough, even after clearing the codes. I have never owned a volvo before and let alone ever worked on one, so I am at a loss. I am finding lots of info about the P0014 code, however I am not finding anything pertaining to that code along with a rough idle. Can you guys please help me out!!..

 

ok so stuff attempted. Clear code, came right back.

changed coil packs.

changed plugs.

changed cam pos sensor.

I just purchased the replacement cam actuator... will install that tomorrow... can anyone shed some light on this please........

 

ok so i got the hesitation out of the engine, but now I am having cooling issues after fixing the hessitation. What can cause this. The lights inside the cars climate control are flashing. can someone help please.

oh and, I replaced the CVVT Solenoid to fix the Hesitation Issue. (With the updated version of the CVVT Solenoid)

But when it starts heating up, the hesitation comes back. It also seems as if the coolant isn't flowing through the engine. Is this a common issue for these vehicles?