6.0 No start. AE available

[Derek@Vision Diesel]

Engine was out of the truck for a full delete and head studs.

Put it back in and hooked everything back up, no start. I am seeing 350psi of HPO but it stops right between the 330-350 mark every time i crank. Is it possible i need to keep cranking on it, seems like ive cranked 25 times already.

Fuel pressure is good
all connections are good
replaced stand pipes and dumby pipes about 30 minutes ago with no change.
no way to get the air tool to check for leaks
FICM voltage on the AE is reading good

No idea what could be wrong, any ideas?

 

[Derek@Vision Diesel]

Bump.....

 

[G Racing]

Your icp is too low. Needs to see 500 and above to start. If its all back together why can't you air check it?

 

[G Racing]

What is the ipr duty cycle and how much icp is it calling for?

 

[Derek@Vision Diesel]

Thanks for the replies, i couldnt air check it because I was in a crunch and without the correct fitting... luckily i found a fitting and am air checking as we speak.

Will report back.

 

[Mdub707]

You get it figured out?

 

[Derek@Vision Diesel]

Crank position sensor down on the bottom of the block snapped off internally. Took the 8mm bolt out and part of the sensor just fell out, the rest was left in the block.

When that sensor goes bad, the truck defaults to 350psi of ICP so it wont start.