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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heres one for ya guys any one know

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Old Dec 6, 2009 | 07:09 PM
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Default heres one for ya guys any one know

Ok i got one for ya guys i herd that when my truck is idleing that the vp shuts off and only uses what fuel the lp pushes. Ok if thats true my truck now idles right inbetween maybe a tad less than 900 and a grand if i was to turn down my raptor 150 would that idle settle down to 900 or a little less
 
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Old Dec 6, 2009 | 07:18 PM
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never heard of this before , dont sound right to me
 
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Old Dec 6, 2009 | 07:41 PM
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I wouldn't think that the lp has enough pressure to fire the injector or know which injector to fire.
 
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Old Dec 6, 2009 | 08:01 PM
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no i dont think that the lp would have enough pres to fire the inj 15psi is def not enough to do so.
 
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Old Dec 6, 2009 | 08:09 PM
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your injectors take alot more pressure to fire than the air dog will ever make so Id say no way
 
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Old Dec 6, 2009 | 08:14 PM
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It should take 4500psi for the injectors to pop. Im pretty sure that isnt going to happen from a lift pump.
 
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Old Dec 6, 2009 | 08:35 PM
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no i dont think so either
 
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Old Dec 6, 2009 | 08:49 PM
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ok thats what i thought but i was reading on another thread in this section some one was asking how much fuel does the trucks use sitting at idle and some one said what i described above but any ways is there a way to make it idle a little less or whats the normal range for rpms
 
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Old Dec 6, 2009 | 09:01 PM
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if thats what yer after just tool on down to the delership and get the 3cylender ideal turned on that might save you some
 
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Old Dec 6, 2009 | 09:04 PM
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na i was just curiouse i just wanted to make sure that was normal bec. it used to idle at 800 befor the VP raptor 150 and quad addr
So whats that 3 cylender idle thing all about never herd it befor
 
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