Power down and turbo pitch sounds low. Solutions?

[jefe4x4]

jefe here. I bought new a 2001.5 4WD Dodge 2500, HO-CTD (not a 53 block), SB, QCab, Vulcan Big Line, upgrade pusher lift pump, 170K miles, NV5600, NV241HD, 4.10's, 3" lift steer brace Gen4 trkbar/tie rod/drag-link Front axle: 35 spline Dana 70 spindle conversion with M M locking hubs; Detroit TRUE TRAC Mosier hardened axle shafts unit bearing&axle disconnect delete, 35" AT3 315/75R16's on 7.5" steel wheels. Rear: 8 leaf, 5" lift, Stable Loads, 35 spline Dana 80, TRUE TRAC, AT3 315/75R16 on 10" wide Stockton steel wheels. 15K lb. Warn winch, 1998 Lance Lite, 8'6", 165-s XTC, 200W solar.
I have kept the engine pretty much stock except for the repositioning of the upgrade lift pump to in front of the fuel tank and the lengthening of what I think is the waste gate hose to allow the turbo to kick in at a lower rpm. Also an upgrade air cleaner. I have only a fuel pressure idiot light which kicks in when the pressure drops below 5 pounds. No problem so far with the VP44.
The symptom is a very slow spool up of the turbo and the pitch seems lower than previously, plus a obvious lack of boost and power even when I'm running the truck without a load. Most of the time my 2500 pound Lance Camper resides on the bed. I do have heavier custom made Stockton steel wheels and heavier tires that also dumb down the power. For kicks, here's a link to what I do with 20 pounds of air in the tires: https://www.dropbox.com/s/bfj5y93wsd7vfkw/jefe does sand hill at dry wash of the devil Anza.m4v?dl=0
Do I need a system leak down test?
jefe

 

[Bob4x4]

If the power picks up around 2k rpm you most likely have a failed map sensor,if that is not the case time to test fuel psi and test for leaks in the cac system.

 

[jefe4x4]

Bob4x4, thanks for the info. You only have 13,154 more posts than I do. I have only run one code during the life of the Cummins: turbo overboost. I'll check these out. As a musician with absolute pitch, I'm sensitive to the note that the turbo produces, especially since my underhood soundproofing was used by a rat for nesting.
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[jefe4x4]

duplicate.

 

[jefe4x4]

duplicate. I'll get the hang of this. Every forum is a little different.
jefe

 

[jefe4x4]

Bob4x4, I called my local diesel tech and he was way too busy to look at my stuff but offered this advice: Have you run any codes? No, says I. How long has it been since you changed the fuel filter? Several years, says I. He said run a certain additive through the tank and then change the fuel filter. The look of the fuel filter is clean as a whistle every time I look at it so I've never thought it was a problem. Apparently not so.

 

[whitexc]

Do not start the truck but....turn key on, turn key off, turn key on, turn key off, turn key on.....record all codes. Should get something from PCM and something from ECM. Google search for a list of codes. This will get you started.

 

[Bob4x4]

Of course you must have a good supply of fuel to make power.You must also have plenty of air.If you had a code I would suspect that you would have mentioned that.A bad Map/boost sensor in your year truck does not always trip a code but it will give the symptoms you mentioned.You never answered weather the power comes on near the 2k rpm-that makes a difference