1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

runnin like crap

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Old Oct 24, 2009 | 07:33 PM
  #21  
92 D/UNIT's Avatar
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From: SW IDAHO
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so did you ever check the fuel pump pressure?
 
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Old Oct 24, 2009 | 08:37 PM
  #22  
tower_ofpower's Avatar
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From: Kingwood, WV
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Originally Posted by RSWORDS
That will destroy a stock truck real fast... Especially if towing
thanks for the heads up bobby; i was going to crank the timing and back off the full fuel a 1/2 turn or so so that boost pressures would be down... i know that cylinder pressures would increase drastically so i figured if i lowered charge pressure it's even out somewhere. i'll just back the fuel off abit and leave the timing where it's at

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i'm just trying to squeeze a little more economy out of the truck around here, highway it does just fine. other than that i get lousy fuel mileage. plus i just re-ground my pin and sinc ei hav e ajunk boost gauge i cant tell anything over 20 psi... cant tell if i gained anything or not; all i know is my EGT's while driving normally are up from before and i dont seem to be going any faster... i figure its just wasted fuel w/o a better trans and turbo
 

Last edited by tower_ofpower; Oct 24, 2009 at 08:37 PM. Reason: Automerged Doublepost
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Old Oct 24, 2009 | 11:27 PM
  #23  
symonds86's Avatar
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From: Earliville NY
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Originally Posted by 92 D/UNIT
so did you ever check the fuel pump pressure?
i have not since i put n a new stock ip pump and got rid of the electric one
 
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