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Usually the fault codes are P1383 and P1388 for both VVT units over retard. The first repair would be to reprogram the PCM then change the engine oil and filter with a thicker oil (10 W 30). Since you have P1386 and P1388 they are both for bank 2 VVT (driver side). This is caused by either a faulty VVT carrier unit or low oil pressure from a worn engine. The oil pressure needs to be checked with a gage and the pressure read when hot.
Thanks. The jag dealer already re-flashed the PCM (I think that's the same as re-programming). Codes P1386 and P1388 came back. I cancelled the codes last night and now, after driving for 45 minutes, I have DTC P1386 in pending status. P1388 is not back yet. Next steps will be to test the bank 2 VVT and/or replace it. With just 85K miles on engine and it runs great I'm assuming it's not engine wear but I will check oil pressure to be sure.
The fact that just the P1386 is pending, does that provide a clue? Should I drive more and see if it clears on its own after recycling?
I found a part number AJ810570 for the V V T Solenoid. Does that sound right?
Is this part difficult to install in Bank 2 (driver side). I found something that looks like it could be the part. It's sitting just in front of the #4 spark plug. Does that sound right?
My mechanic told me the part no. is XR816241 (need to pull part of engine apart to install. I think mechanic is wrong. Research tells me his part no. is the Sprocket-Camshaft.
What say you?