I have a 2010 Chevy 5.3L that had a bad AFM lifter. I decided to remove AFM completely and swap the cam with a TSP 212/218 .600/.600. I replaced the lifters, pushrods, and valve springs. I also installed a phase limiter on a new camshaft phaser. (I broke the old one). After closing up the important things, I started it. It ran for about ten minutes roughly then I stopped it. I installed the tires and other non-engine items. I attempted to start it to tune and it won't start.

I have compression, spark, and fuel. I checked the dot alignment and all looks good. I'm getting occasional detonation through the intake or valve cover.

What should I be looking at now? I'm at a loss. It seems like timing to me. Attached is the tune and scanner.

 

Go through and set all the AFM/DoD trouble codes to no error reported.

 

I turned off all the DTCs. Thank you.


Turns out I didn't get the camshaft settled into the camshaft phaser correctly. It ran at first and then came out of sync when it shutdown. I found light scoring on the phaser. The pin hole was damaged. No wonder it sounded out of time, it was about 180 degrees off.

 

I was gonna say, if it spits into the intake it's off time