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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Cummins running rough

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Old 02-21-2013, 07:02 PM
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Default Cummins running rough

01 cummins 200 horse injectors tst stacked with edge ez air dog. Truck jerks and misses and runs rough under acceleration
 
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Old 02-21-2013, 08:10 PM
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Do you have a good LP and FP gauge? Sounds like the IP could be going down.

Injector damage can occur with this stack if the pressure levels are to high....
 

Last edited by H.R.D; 02-21-2013 at 08:18 PM.
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Old 02-21-2013, 08:36 PM
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Yeh fuel pressure is good Lp pressure?
Ip?
 
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Old 02-21-2013, 08:40 PM
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LP= Lift Pump
IP=Injection Pump

What TST do you have and what power level do you run it on? Also how do you have it stacked? The TST should be plugged into the MAP sensor then the EZ plugged into the TST's pigtail and then ez plugged into the stock wiring.
 
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Old 02-21-2013, 08:52 PM
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Yeh that's how it's stacked. Tst powermax 3
Ran awesome for awhile like this. I'm aware that it runs too hot but I don't tow and I each the gauges real close
 
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Old 02-21-2013, 08:54 PM
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From what I have read people who run this stack say to keep the TST on level 2 or below. Any high than that and a lot of pressure is put on the injectors which could lead to failure.
 
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Old 02-21-2013, 08:59 PM
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What is the point of the stack then? Mite as well take the edge off and run the tst on 9 way more power than level 2 and edge
 
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Old 02-22-2013, 10:35 AM
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I am just telling you what I have read man. I don't stack so it doesn't matter to me.
 
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