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

Missing at 2200rpm?

Old Dec 20, 2008 | 11:53 PM
  #11  
oglejust's Avatar
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From: paris illinois
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hmm wish i could figure this out
 
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Old Dec 21, 2008 | 12:24 AM
  #12  
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it could be 2 things.

Fuel supply. there could be a lacking fuel supply as with no plate and a gutted AFC housing the demand for fuel may be more than the pump can supply

it could be dumping enough fuel to put out the flame and cause it not to ignite the fuel .

the second thing it could be is Timing. a truck at stock timing or slightly retarted, some trucks will retard over time as timing slips. get a shop or someone that has the tools to make sure you are in the 15-16* range.
 
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Old Dec 21, 2008 | 01:34 AM
  #13  
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Originally Posted by oglejust
yeah theres no plate so not the gov arm, even when i slowly rev it its not gonna build any boost bc its a manual
a manual wont cause it to not build boost i can built almost 20psi standing still in neutral
 
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Old Dec 21, 2008 | 01:17 PM
  #14  
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Originally Posted by 94cummins12v
a manual wont cause it to not build boost i can built almost 20psi standing still in neutral
what??? i cant... about 5 pounds if i really hammer it.
 
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Old Dec 21, 2008 | 01:50 PM
  #15  
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my auto in neutral at 3100 will build about 10psi....
 
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Old Dec 21, 2008 | 02:15 PM
  #16  
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Im guessing your running out of fuel. That or your timing has slipped a little get it re timed or bump it to 16* or 17* if that doesnt fix it try a fp Guage. I had a buddy with a miss around that RPM but his was from the 131dvs and 370 injectors.
 
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