6.4 no boost

[rmonson1]

I have a 08 250 6.4 auto 110k. Front housing was replaced after oil blew threw exhaust. work done at dealer. DPF clogged. I straight piped it and added h&S tuner with delete mode. Started truck no boost, runs like non turbo 7.3. I unplugged all three sensors of exhaust and check engine light goes away but runns the same. Boost gage moves a little when i turn key but does not move off 0 when reving engine. Turbos are not makeing any noise, no metal rubbing or grinding. I put tuner back to stock mode and then reinstalled program, no change. It throws two codes, one is turbo and one is ac. I miss my truck please help. It feels electric to me. truck is blowing smoke like an old turbo not burning all the fuel.

[44magnum]

wish I could be more help, but all I can suggest is to double check that no sensors are unplugged. Boost boot off? Variable vane actuator unplugged? What caused the DPF to plug?

[rmonson1]

the dealership said that that either coolant was run low or air bubble causing water pump to beat housing mixing everthing at front of the engine. They said that it was not that uncommon. They said when this happened it was pumping oil into the exhaust, when i pulled dpf it was dripping.

[rmonson1]

I checked all conections I could find ,everyting seems plugged in. when I have some one rev it up the likage on the turbo moves quite a bit. how do I tell if turbo is bad?