12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

FUEL ISSUE, HELP!!

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  #11  
Old 04-23-2013, 11:09 AM
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make sure you hooked to signal line to the afc back up
 
  #12  
Old 04-23-2013, 10:04 PM
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Lines are all hooked up. something isnt right. has these for new parts. just bought the truck a month ago. previous owner did this... fuel shut off solenoid - intake heater solenoids
new batteries
s&b cold air intake
fuel sending unit and gauge in fuel tank - fuel lines
brake lines - ,rear brake shoes and all the hardware
front brake pads, front rubber brake hose
frame completely cleaned and painted
inside of cab floors bedlinered then rug put back down
bottom of cab bedlinered and painted
flywheel resurfaced,upgraded clutch,pressure plate and t/o bearing
transmission filled with amsoil,transfer upgraded to a DHD model.

Ive done steering pump, 6 plate then shaved my stock down to a 0 to see if i got any more fuel, boost elbo, timing 16.5, 4k gov springs, valve springs, KDP, front maine seal, valve adjustment, valve cover gaskets. gauges (EGT and boost). cant understand the problem. My waste gate leaks so i pinched it off. it seems like im not getting fuel all the way. doesnt even run hot. wont go over 900

 
  #13  
Old 04-24-2013, 07:14 AM
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is your fuel shut off binding? this could be your problem. if the linkage isnt spot on the solenoid cant pull the lever all the way up limiting fuel. and for the sake of everyone on here when you get this problem figured out please hook your waste-gate back up.

did this happen immediately after you installed the new fuel plate?

or it could have something to do with your govoner springs. these can be a trick to get to work just right. mine are way way tighter than the directions tell you to get them. how many RPM's can you free rev to and how many under a load. these are also directly related to fueling
 
  #14  
Old 04-24-2013, 03:40 PM
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I did gauges and #6 plate in one night. tried it only got 15psi and wouldnt go over 800 for EGT. Then I payed a guy who does this work and has on my buddies truck and his truck and knows what he is doing to do the rest. he told me to check for boost leaks (checked can't find one) and do new fuel lines which I am doing tonight. He pinched the wastegate.

In nutral I can rev right to 4000 im sure, never have tried but went to 300o. driving i can go to 3000 and been to 3500 driving. It goes but just depending what gear your in to get the RPM's up there you know what i mean?
 

Last edited by first-gen-tough; 04-24-2013 at 04:04 PM.
  #15  
Old 04-24-2013, 07:35 PM
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could this truck have a start retard pump on it? if it does putting a cut fuel plate in it can cause issues
 
  #16  
Old 04-24-2013, 09:44 PM
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Originally Posted by kapnhook
could this truck have a start retard pump on it? if it does putting a cut fuel plate in it can cause issues
Never heard of one? what is it
 
  #17  
Old 04-25-2013, 02:17 PM
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I'm pretty sure he is talking about the retard notches found on the 215 pump ... the notch does not effect fueling it retards timing as rack travel increases.
 
  #18  
Old 04-25-2013, 03:00 PM
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The truck was an auto and converted to manual 5 speed so it has the 180 pump

---AutoMerged DoublePost---

An other thread talked about the fuel rack I believe and to adjust the OFV. ould this be my issue?
 

Last edited by first-gen-tough; 04-25-2013 at 03:00 PM. Reason: Automerged Doublepost
  #19  
Old 04-25-2013, 04:48 PM
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we need fuel pressure readings man or we cant help you.
 
  #20  
Old 04-25-2013, 05:36 PM
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I do not have the equipment I need to do that. The guy I brought it to checked it and at idle it was 28 - 30. he never checked it driving. I wish he would have. in a week i will bring it down to him again and we will re check it driving
 


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