2007 6.0 F350 No Power No Boost

quadragin

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2007 Ford F350 6.0 No Boost Condition
Initial condition
No power, tons of smoke, tons of oil in the intake path, and Underboost codes
What we did..

Had a turbo from an 03 that I rebuilt
Rebuilt Turbo (seal bushing o-ring kit, VGT fins, Compressor Wheel and Shaft Wheel)
*Made sure the VGT piston was indexed properly 180 deg rotation on the Unison Ring
*Tried 3 different VGT solenoids
*Demanded the VGT open and closed, we can here the difference in turbo sound

Cleaned inter cooler and all intake piping
Swapped out the MAP sensor
Cleaned EGR Valve
Cleaned the MAF sensor
Unbolted the Catalytic converter
Ran it with no air filter
Using Torque Pro; VGT stays at 85% unless we let off peddle quickly then it will flick down to 60% then back to 85%.

HPOP, FICM, IPR, ICP, ICP Sync all within normal parameters
Sometimes we will get a cylinder contribution code on misc cylinders.

I am at a complete loss..
Next were are going to inspect the inter-cooler again for leaks, and I guess find another turbo to try
 

6.0 Tech

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Ebp? Plugged map port on the intake? Check all pressure sensor psi pids, make sure they are damn near eachother.
 

quadragin

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Pulled intake cleaned a ton of carbon out, cleaned the EBP sensor and tube.
EGR cooler look OK.
All back together same symptoms no power no boost showing on the MAP...
which PSI PIDS are you talking about?
I helped work on an 06 that had little boost after a turbo clean and everything started work great after a few days of driving
 

6.0 Tech

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Check map, ebpa, and baro pressure koeo. They should be really close. Ford says 1.5 psi, but typically we see closer to .5 psi difference between any 2. How does the ebp pigtail look? Is there any corrosion/green chit on it? Is the yellow or purple seal and the white retainer still there?
 

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