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ID2000 injectors idle problems

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Old Sep 17, 2011 | 01:57 AM
  #31  
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Check your battery compensation table. I've found with the ID's its really important to use the right battery comp table for your fuel pressure. Ideally you want a fuel pressure sensor and use a 3D table. That way the compensations are correct when the manifold vacuum at idle backs of the fuel pressure. Its not that there is anything wrong with the ID1000's, its just that they have such a flow potential that some of the normally small compensation tables have enough of an influence to muck up the idle.
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Old Sep 18, 2011 | 07:03 PM
  #32  
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Originally Posted by D1sclaimer
I would like to know too as I am having some issues as well. I'm having the same small oscillating idle...

me 3. 2000's at idle are damnnnn. thread subscribed
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Old Sep 19, 2011 | 06:31 AM
  #33  
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Originally Posted by chris_barry
Check your battery compensation table. I've found with the ID's its really important to use the right battery comp table for your fuel pressure. Ideally you want a fuel pressure sensor and use a 3D table. That way the compensations are correct when the manifold vacuum at idle backs of the fuel pressure. Its not that there is anything wrong with the ID1000's, its just that they have such a flow potential that some of the normally small compensation tables have enough of an influence to muck up the idle.
When your fuel pressure is lowered under vacuum the differential fuel pressure is not actually changing. The vacuum reference regulator is meant to keep a constant differential pressure. i.e. if your base pressure is 45psi then at idle under vacuum your injectors are still seeing a 45psi pressure. Even though your rail fuel pressure may only be around 35-37psi.
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Old Sep 20, 2011 | 05:59 AM
  #34  
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Did you just set you AF in the low 14's and let the engine oscillate while moving the injector pulsewidth back and forth until you found the sweet spot and it smoothed out? I think that what my tuner did.
Yes. It took quite a while, haha, but turned out fine. I ran into another problem with the injectors hitting max duty cycle long before they should have as well and that took a while too haha. It idles like a champ now!
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Old Sep 20, 2011 | 06:14 AM
  #35  
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Originally Posted by penguinsintuxedos!?
Did you just set you AF in the low 14's and let the engine oscillate while moving the injector pulsewidth back and forth until you found the sweet spot and it smoothed out? I think that what my tuner did.
Yes. It took quite a while, haha, but turned out fine. I ran into another problem with the injectors hitting max duty cycle long before they should have as well and that took a while too haha. It idles like a champ now!

What rpm do you have idle set at? What is your afr at idle? Hard to believe you would hit max duty cycle with the 2000's unless you have a crazy amount of boost. What was the problem?
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Old Sep 20, 2011 | 06:37 AM
  #36  
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What rpm do you have idle set at? What is your afr at idle? Hard to believe you would hit max duty cycle with the 2000's unless you have a crazy amount of boost. What was the problem?
37psi, so yes high haha. 1100 rpm, a solid 14afr. I'm not sure what the problem was exactly, but i was running out of injectors at only 600hp at 25psi? so after scrathcing my head aand pulling my hair a bunch, i just restarted the whole map and it went fine
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Old Sep 20, 2011 | 06:46 AM
  #37  
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Still having oscillation issues with ID 2000's and kpro. It goes away when fuel is hot but I compensate by running 1350rpm and adding fuel into ect fuel compensation table so I dont get the lean oscillation swings when warming up. Going to have induction performance look at log. You can only play with phasing in kpro slightly and its not rpm dependent unles its wot. AEM has more control so easier to tune the 2000's
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Old Sep 20, 2011 | 07:20 AM
  #38  
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Originally Posted by penguinsintuxedos!?
What rpm do you have idle set at? What is your afr at idle? Hard to believe you would hit max duty cycle with the 2000's unless you have a crazy amount of boost. What was the problem?
37psi, so yes high haha. 1100 rpm, a solid 14afr. I'm not sure what the problem was exactly, but i was running out of injectors at only 600hp at 25psi? so after scrathcing my head aand pulling my hair a bunch, i just restarted the whole map and it went fine
Damn nice, whatd you make at 37?
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Old Sep 21, 2011 | 08:41 AM
  #39  
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nearly 1000 with maxed out injectors and 80psi fpr haha
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Old Sep 21, 2011 | 09:02 AM
  #40  
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Jebus

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