Seems to have good compression, before attempting to start it, I turned the crankshaft by hand 2 full revolutions, all 3 timing marks still aligned. When installing the exhaust cam sprocket, with the new vvt hub, I rotated the sprocket fully clockwise on the vvt hub before aligning the timing mark a...

ok, my son provided a scan tool and we read 2 codes, P0420, and P2402

I had a rapidly developing oil leak from the front of the engine. Web searches seemed to point to vvt cam sprockets seals to be a likely area. I replaced both the seals and o-rings on both vvt cam sprockets. I put it back together to a point where it should run, (not all of the engine mount hardware...