Hello

I am having trouble with a reoccurring P0014 code - Timing advanced bank 1. I have posted several times over the last several weeks with the things I have tried to resolve the code so here is a summary:

1. I bought the car with the CEL on and showing a P0014 (bad mistake).
2. I started out by replacing the timing belt, water pump, idler pulley, and tensioner. The code cleared for a few days then came back.
3. I checked the timing marks to be sure I had not gotten off a tooth but everything appeared to be on the mark.
4. Lost #4 coil pack and replaced it (unrelated I think)
5. On a cold morning a few weeks ago I got a engine temp sensor trouble code. I cleared it and it has not returned. I have a new sensor but have not installed it yet. Car seems to take longer than normal to come up to normal operating temperature.
6. Changed out the exhaust cam variable valve timing solenoid – code cleared and then came back after a few days.
7. Changed out the oil trap to help with an unrelated (I think) oil leak due to high crankcase pressure. That was a fun weekend. Oil leak stopped but code still was there.
8. Changed out the camshaft position sensor last night. Code cleared for 50 miles or so then came back this morning. I also got a ETM light this morning that cleared with no intervention from me.

When the code sets the car runs noticeably rougher with a surging idle. I did learn from the previous owner that the timing belt broke at one point in the past and the head and valve train were replaced. I was wondering if their mechanic could have messed up the install and gotten the timing off. The marks all line up but the exhaust cam gear appears to have some adjustment possible in relation to the cam. If the cam gear was put back on the cam shaft in the wrong position the timing mark on the gear would be off. I am not sure how this would explain the intermittent nature of the problem. Any other ideas?

Thanks