Got it. That info does help. I am sure you saw the note on the condition of the oil is important on variable valve engines which your engine is.
Here is a guide that talks about this system:
https://www.2carpros.com/articles/how-camshaft-variable-valve-timing-works
So, if you flushed the oil and coolant then I suspect this code was set when the oil was diluted with coolant.
That means we need to find out if the code clears and returns now that you have replaced the oil and it is not mixing.
There is a chance that the variable valve solenoids are damaged but more than likely it was an oil viscosity issue.
Can you try and clear the codes and see if they return?
If they do then more than likely these are damaged. However, the testing will confirm this. The PCM test that it talks about is just to turn the key on and make sure the PCM comes on and turns off. This is the PCM passing the self-test.
Feb 17, 2022 at 4:45 PM