04.5 cummins cutting out - Diesel Bombers

5.9 Liter CR Dodge Cummins 03-07 Discussion of 5.9 Liter Dodge Cummins Diesels with Common Rail Injection

04.5 cummins cutting out

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Old 07-21-2018, 02:01 PM
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Default 04.5 cummins cutting out

I have an 04.5 cummins that is stock except for a 4Ē exhaust. It started cutting out really bad. It will cut out for several seconds at a time. There are no codes. I changed the tps sensor, injectors, *the sensor on the back of the injection pump and the fuel rail pressure thing. Just to see what would happen I took the smarty s06 tuner off my other truck and installed a tune on it and the problem went away except it started surging when it gets up to speed. Not bad but you can definitely feel it. Iím at my wits end and am losing my mind trying to figure it out. Any help would be most appreciated.
 
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Old 07-22-2018, 09:04 AM
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Hows your fuel pressure? Im surprised you didn't get any codes. Have you ever cleaned all of the ground connections? A bad ground will also raise havoc.
 
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Old 07-22-2018, 10:15 AM
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At the pump 17 at an idle and 12 getting on it. At the rail 6,600 idle up to 22,000. Iíve checked all the easy grounds.
 
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Old 07-22-2018, 10:34 AM
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What I donít get is what is messed up that doesnít throw a code and the smarty s06 changes
 
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Old 07-22-2018, 11:02 AM
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Well that answers that question...Ö..
Now Im starting to think of a possible short circuit somewhere. Something is definitely amiss......
 
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Old 07-22-2018, 12:15 PM
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It runs perfectly when itís cold to.
 
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Old 07-22-2018, 01:17 PM
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After some more trouble shooting I found out itís turning the shift limiter off on the smarty that is fixing the problem. Any ideas?
 
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Old 07-22-2018, 02:34 PM
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Kripes...ya got me there!!! I'm thoroughly stumped now. Hope someone chimes in with a solution. Send a PM to Dangerous1965, on this site. He's helped me in the past. He's damned close to "Guru" status.
 

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