Help LB7 wont fire

[SHOTZY]

Just finished replacing turbo and head gaskets. Truck only builds 870 psi of rail pressure during cranking. Thought this was enough to fire, but not sure. Any ideas? Checked balance rates as well, all stay at 0. I'm assuming this means they're not firing. Is this because of RP?

 

[Madspeed]

crack an injector line open to let it burp the air out . Youve prob allready got it running anyways :thumb:

 

[SHOTZY]

Actually we don't. Did try that though. We're now thinking it killed the IP because it ran for about 3+ minutes at @2000 rpm with the key off. The motor kept running because of the oil being pumped into the motor when the turbo blew. Not sure on this one.