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Old Nov 27, 2011 | 05:54 PM
  #16  
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i wasnt going to tell. lol but i already tried. I only gave it a dab on the filter then went and turned the key, the rpms increased and took the load off the starter for a few secondes but no start. I dont think a small snort of ether is that big a deal, though some will 100% disagree.
its not like i emptied the can. iv seen some one hold that can and spray it into the intake untill the truck started, which i would never do
maybe a snort w the filter off would help more, but even if it started, id still have my problem.
 
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Old Nov 27, 2011 | 06:04 PM
  #17  
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I've completed took my chip out to
I got a running truck and a spare parts one and I'm tempted to try parts of it
But I'm scared to mess it up I need that truck
 
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Old Nov 27, 2011 | 06:27 PM
  #18  
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The PCM can only guess at the lack of fuel pressure , 30 PSI is sufficient if it remains 30 PSI...
 
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Old Nov 27, 2011 | 06:30 PM
  #19  
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Originally Posted by coreylasalle
iv been keeping the batterys charged. borrowed one of those big chargers/jumpers with the 150amp jump start or something. no issue there.

those are kind of my thoughts. but could the pcm be bad if i can communicate with the scanner with out problem?

could the injectors not be getting fuel even with 30-40 psi at the schrader valve? does that measure before or after the fpr and all that stuff?
THe PCM is what tells the IDM to fire the injectors when certain parameters are met ...

Let us know what IPR DC % is ...
 
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Old Nov 27, 2011 | 06:43 PM
  #20  
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il get the DC tomorrow. what should the DC range be while cranking?

will any pcm work to at least start the truck, or does it have to have a similar or matching code.
 
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Old Nov 27, 2011 | 06:50 PM
  #21  
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IPR DC at startup should be 15% or so . You need the correct (updated) , or matching PCM ...
 
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Old Nov 27, 2011 | 06:56 PM
  #22  
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kinda wishing i grabbed that one from the junk yard a month ago.

alright, thanks everyone who has helped so far, ill update my findings tomorrow.
 
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Old Nov 27, 2011 | 07:29 PM
  #23  
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Have you tried flipping fuel switch?
 
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Old Nov 27, 2011 | 09:03 PM
  #24  
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yes lol, there's at least a quarter in each tank.
 
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Old Nov 28, 2011 | 08:48 AM
  #25  
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The scanner has "injprsreg(%)" which with key on stays at 15. But while cranking is between40 and 50. And an icp getting around 3000 psi. That seems ok right?
 
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Old Nov 28, 2011 | 08:53 AM
  #26  
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How long should the hpo hold or does it drop right away?
 
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Old Nov 28, 2011 | 08:55 AM
  #27  
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Originally Posted by coreylasalle
How long should the hpo hold or does it drop right away?
After I stop cranking that is.
 
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Old Nov 28, 2011 | 10:35 AM
  #28  
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Originally Posted by coreylasalle
How long should the hpo hold or does it drop right away?
Key off ,the pressure will drop off right away (IPR open )

Try cracking one of the HP plugs or a line , then crank it over .Put a rag over the fitting , oil should spray, not drip out .
 
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Old Nov 28, 2011 | 10:38 AM
  #29  
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Originally Posted by coreylasalle
The scanner has "injprsreg(%)" which with key on stays at 15. But while cranking is between40 and 50. And an icp getting around 3000 psi. That seems ok right?
40-50 while cranking means the PCM is calling for the IPR to be fully closed . If there is 3000 PSI , the PCM is not seeing it , or maybe the IDM is not responding ..
 
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Old Nov 28, 2011 | 11:19 AM
  #30  
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Well the hpo I got off the scanner so the pcm must be seeing it. With a 40-50% dc the ipr should be closed your saying? So I should not see pressure that high
 
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