2005 Volvo S60 2.4L non-turbo will not stay running.
 

Long short story, it's my mom's car, she likes the thing. Had an interference issue when the water pump locked up throwing the timing belt off. GATES. Never buy! All of that is repaired. Now the damn thing will not stay running. Will start smoothly sounds and runs normal, just will not stay running. On my Autel, Maxipro mp808 lists the following codes,
ECM-310A
ECM-300A
ECM-941C

Anyone?

310 and 300 are cam and crank position sensor codes.

You (or someone) just took the head off, fixed the bent valves and reinstalled. I would make sure the cam timing is correct. With VVT you might have to put the cam timing tools on to make sure.

Right got the codes. Yes, I took the head off and took it to Scroggins Machine, Houston, TX. I have the Volvo timing tools. Matter of fact I redid the crank-cam timing four times till I was happy with it. It was interesting, to say the least. What I was not sure about was the VVT. The car only has it on the intake camshaft. With the locking tools installed I turned the VVT towards the front bumper.