P0012 engine code

[Ramon1691]

Hello Yaris world I'm having a code in my Toyota Yaris 1nzfe engine p0012 camshaft over retarded bank 1 I'm stressing over this the car has 147000 thousand miles the previeous owner didn't keep up with maintenance that well, car runs fine a little roughy idling at times and sometimes it takes a few cranks to start I did a whole tune up on it when I bought it 3 months ago like I said no issues driving it I did some research on the matter it appears it can be as simple as a solenoid like the oil control valve or the camshaft gear code got erased after installing new battery a month ago it hasn't come back my mechanic says to wait until it comes back to take it in my question is hat could be causing this issue? If it was serious shouldn't the check engine come back right away?

[CTScott]

No need to post two separate threads about this.

It is most often due to the oil control valve being damaged when the belt was tightened. Typically though, if that were the case, it would keep coming back. It can also be caused by the filter screen for the valve being clogged, and that could potentially self-heal with an oil change.

[Ramon1691]

Thanks for replying Scott if the ocv valve is damage can that cause the car to hard start take several cranks before it starts? The car gets same mpg I don't feel any loss of power or anything is just hard starting

[Ramon1691]

Now that I think back the check engine light came on 4 days after I did the oil change I used the correct oil and filter idk if that has anything to do with it

[Ramon1691]

http://youtu.be/dtJywXKDr-4 Scott this is a link of a video that I uploaded on YouTube this is what is sounds like at start up sometimes