lb7 shut off and wont start back up...PLZ HELP!!!

B

boostedmax

RowCrop Cowboy
im working on a 04 lb7 truck....driving it down the road one day and it shut off and wont start back up...early that morning itwas idling odd and i thought it was just cuz it was cold out cuz it is tuned and has a cam and 75% over injectors.
history on what i have done.....
3 days before it shut off the injectors were replace
i have swapped ficm and ecm and cp3 pump and still wont run. These parts all came off a running truck. it will start on ether then die.
has a new fuel filter also and a ppe pump on frame rail.
its getting fuel to filter fine.
I scanned it with a tech 2 and the rail psi is 170-250 and desired is 6900....

If someone could give me some hints on what to try next im open to do whatever....(even burn it down haha)

Also i wonder about the crank sensor if it has something to do with it but the tech 2 said it was reading correctly
 
So you have a tech2 and don't know how to use it? You could pull the heads and make sure it still has pistons.
 
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I once pulled the head off my lb7 a few hundred miles after installing it to be sure the injection timing wasn't so advanced that fuel spray was out of the bowl. Then I put it right back on with a new gasket and a smile.
 
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