Could use a few extra set of eyes to look over current issues and advise

A few weeks ago my manual limited had the typical start then die immediately 3 times, then nothing. I've had the skreem/ecu sent out (came back with a clean bill of health), I checked the module in the truck for corrosion (nothing), plugged in my rcm for my srt6 (still won't start). My next steps are camshaft position sensor and crankshaft position sensor

Any other ideas???

Thanks