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Old Feb 9, 2014 | 09:58 AM
  #1  
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Ficm question

Can a ficm going bad be hard on the injectors?
 
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Old Feb 9, 2014 | 10:00 AM
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Originally Posted by KIDkiser
Can a ficm going bad be hard on the injectors?
Absolutely
 
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Old Feb 9, 2014 | 10:56 AM
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just wondering cause mine ranges from 35 to to 40 on cold mornings according to the scangauge,but it starts fine,doesnt smoke,and runs like it always did.
 
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Old Feb 9, 2014 | 10:58 AM
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Originally Posted by KIDkiser
just wondering cause mine ranges from 35 to to 40 on cold mornings according to the scangauge,but it starts fine,doesnt smoke,and runs like it always did.
Its only a matter of time before she goes t.i.t.s up and leaves you sitting on the side of the road somewhere or wont start one morning.
 
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Old Feb 9, 2014 | 11:49 AM
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could a weak battery make that much difference?
 
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Old Feb 9, 2014 | 11:55 AM
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Usually a weak battery causes the FICM to go South, then if the battery is not replaced and the FICM is not repaired, the injectors start going down. Otherwise known as a "domino effect".
 
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Old Feb 9, 2014 | 12:04 PM
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Any time the FICM voltage falls below 45v it's in need of repair.
 
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Old Feb 9, 2014 | 12:06 PM
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The alternator maybe going south too.....because of the batteries
 
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Old Feb 9, 2014 | 05:01 PM
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I've ordered my Power Supply from Bullet Proof Diesel. They say that its 95% of the time the Power Unit that fails and not the logic board.. Im going with the 6 phase but its really good price imho to upgrade for..

http://www.bulletproofdiesel.com/Bul...icmupgrade.htm

take a look at them. Might be a good solution.
 
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Old Feb 9, 2014 | 05:20 PM
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You can get the Ultimate upgrade from Ed at FICM Repair.com - Your Source for FICM Repair with a lifetime warranty for about the same price.
 
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Old Feb 9, 2014 | 05:41 PM
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yeah im just gonna call Ed in the morning and get one shipped out,with the atlas 40.i've been trying to get out of doing this,but might as well go ahead before im left stranded.
 
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Old Feb 9, 2014 | 07:00 PM
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I'm right there with ya kidkiser. Mine drops to 41-42 on cold starts and goes right back to 48 after a couple minutes. I also want the ultimate for the warranty and the atlas 40 tune. But I will be towing a 14,000lb fifth wheel in the near future and not sure if the atlas 40 is a good idea. I need to call ed also.
 
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Old Feb 9, 2014 | 07:49 PM
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What exactly happens to the injectors that causes failure with low FICM voltage? With DC a low voltage would mean lower amperage across the coils. So it much be something on the bottom side getting damaged from improper timing due to slow switching of the spool valve?
 
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Old Feb 10, 2014 | 11:19 AM
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V = I * R. For a given resistance, if the voltage decreases, the current, I, or amps must go up. This creates much more heat and melts solder on the power board. So, this also translates to pushing more current through the wiring to the coils on the injectors to drive them, with low voltage, and those skinny wires can't handle hat either. Kinda becomes a high amperage house of cards.
 
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Old Feb 10, 2014 | 12:09 PM
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Originally Posted by npccpartsman
You can get the Ultimate upgrade from Ed at FICM Repair.com - Your Source for FICM Repair with a lifetime warranty for about the same price.
I just recommended the same to someone else, Bulletproof Diesel has a 1 year warranty on their FICM whereas ED offers a lifetime warranty for less.
 
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