Hi, I bought an 07 S40 with a spun rod bearing. After a total engine go-through including new crankshaft, bearings, etc. It started up and ran great. I have a Code P0016 which seems to suggest that the intake cam is timed incorrectly. I bought the cam holding tool and timed the engine carefully. I have a VVT intake cam and a solid-timed exhaust cam. The intake VVT hub is the newer gen style with the flat face and internal vanes. When timed, the locking pin was engaged on the intake cam. No slack was left in the belt when timed and I believe it to have been done with accuracy.

Are there any other caused of P0016? Oil pressure seems to be fine throughout the engine and it runs smoothly and without problems. ALL gaskets were changed on the engine when rebuilt and I have no external leaks.

My ideas of possible causes:
The cam holding tool had a small amount of play on the cams before tightening the holding bolts, this could have put cams off by <2 degrees. The cam sensor reluctor rings also have a small amount of play on the end of the cam, which could retard or early the signal slightly.

 

yes being off by one notch will set off the code but the engine will run...

 

Thanks for the reply. I'm not sure if I am out of timing or if I have a cam control problem related to the VVT solenoid or oil flow to it. When timing the newer VVT hubs with the vanes, should the locking pin be locked when tightening the VVT hub center bolt? If I need to be in the center of the cams actuation range when locking the hub to the cam, that would certainly explain my problem.

I bought a DICE/VIDAS unit and will be looking at Volvo specific codes hopefully tomorrow.

 

some people have had luck doing a seafoam treatment to clear the oil passage in the VVT gear... may be worth a try?

 

Here are my cam adaption and angle values at a fully warm idle.
Does anyone know how to read these? It looks to me that the cam is measured at 16 degrees and it should be at 20. Advancing the cam 4 degrees would also bump my adaption value up 4 degrees to around 26, which is pretty close to the 27 it should have.

My problem with this, if I want 4 degrees CA (crank angle), this is only 2 degrees of cam angle. There is no way the cam holding tool is able to hold the cam +- 2 degrees.