24 Valve 2nd Gen Dodge Cummins 98.5-02 Discussion of 24 Valve 5.9 Liter Dodge Cummins Diesels with VP44 Injection Pumps
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loss of power an poor fuel mileage

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Old Oct 19, 2011 | 07:13 PM
  #11  
elliott79244's Avatar
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Reset the apps, the only code that came up is P0380 glow plug/ heater CKT A malfunction. Checked fuel pressure off top of fuel filter an it showed 8 but that was idling. 6 at higher rpm. Will have to get longer hose to check it under load.

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Resetting the APPS did seem to help some but still seems week in 5th gear.
 

Last edited by elliott79244; Oct 19, 2011 at 07:13 PM. Reason: Automerged Doublepost
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Old Oct 19, 2011 | 08:37 PM
  #12  
Cody Cummins's Avatar
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Default Re: loss of power an poor fuel mileage

Fuel psi should not be anywhere under 10 with these pumps!

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Old Oct 31, 2011 | 06:30 PM
  #13  
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Installed new lift pump. Still bout the same. Do you plug into the port under the dash to read vp44 codes or is it somewhere else?
 
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