Truck cranks but wont fire

Bako_Dmax

GTO Slayer
Apr 3, 2008
657
0
0
Bako
I broke the crank in my LBZ, I picked up a complete LLY engine to use in the truck. I Pretty much only used the short block from the LLY, I swapped over the entire top end from my LBZ heads, intake, CP3, injectors, fuel rails etc. I also changed out the reluctor wheel and timing cover from the LBZ over to the LLY.

I have it back together and in the truck it cranks but will not fire, I logged fuel pressure while cranking it builds over 6500psi.

Thanks
 

chevyburnout1

Fixing it till it breaks
Aug 25, 2008
2,368
1
38
Berthoud, CO
Can you log "Crank Sensor Signal Missed" and "Cam Sensor Signal Missed" with EFI Live? RPM is reading correctly on the log as well?