Just got my truck, 2009 GMC cc 6.2L 4x4, back from the shop with a new custom ground cam. Using EFI live I loaded up a base tune just to get the truck home and after this I will purchase a tune to really get going. With that being said I'm getting a
P0011 code which is coming up with no description and I do not find it listed here. The truck runs fine, but I know it will run better when it gets it's real tune. My question is what's up with this code...what does it mean..do I need to park my Sierra and drive the Colorado everywhere? Let me know something guys my Sierra is my baby.

 

Incorrect camshaft timing
VCT solenoid valve stuck open or continuous oil flow to piston chamber
Camshaft advance mechanism binding, or faulty VCT unit

This check engine light code is caused by a mechanical fault of the VCT unit or related components, so there is no need for electrical diagnosis. Possible symptoms may include rough idle, stall or hard start. Refer to manufacturer specific component tests for the VCT unit.

 

The truck starts and idles fine. Hasn't stalled either. I've only driven it a couple times though. the cam is 114+5 think this could throw the light with the built in advance? Does anyone know how to check the VCT unit and it's related components? thanks Scott for the info. Seems like somethings never go my way.....crap. On the upside my wife is about to have our first child....a boy!

 

I'm not too familiar with the new trucks as far as the new components and the computers. You might try PMing Charlie Wheatley about it, or even Tootall as he installs plenty of cams in these newer trucks.

 

thanks man, I'm going to get in touch with eps...geoff. I got the cam from him and I'm sure he can help. If not I'll definitely PM wheatley or tootall. thanks again.