Can someone explain low boost fueling to me - Ford Powerstroke Diesel Forum
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post #1 of 9 Old 06-24-2012, 05:32 PM Thread Starter
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Can someone explain low boost fueling to me

I see that as an option on my H&S but dont know what it is and how it works?
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post #2 of 9 Old 06-24-2012, 05:47 PM
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I think it increases fueling at lower boost levels.



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post #3 of 9 Old 06-24-2012, 06:07 PM
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You can use the lbf settings to decrease or increase how much smoke your truck produces when you romp on it with low boost psi.

I guess you could think of it like a safety defuel. The program will lower fuel delivery at lower boost levels to keep smoke down.

I run mine on the lowest setting and it seems to keep my egts a bit lower, but that could be in my head, I'm not positive.
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post #4 of 9 Old 06-24-2012, 06:36 PM Thread Starter
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So, its just a smoke thing? Not for running the truck more effieciently?
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post #5 of 9 Old 06-24-2012, 06:44 PM
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Quote:
Originally Posted by blk450er View Post
So, its just a smoke thing? Not for running the truck more effieciently?
I think so. My well calibrated butt Dyno can't tell a difference in pick up between the highest and lowest settings.
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post #6 of 9 Old 06-24-2012, 07:11 PM
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Originally Posted by jesilvas View Post
I think it increases fueling at lower boost levels.
I see what you did there
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post #7 of 9 Old 06-24-2012, 07:12 PM
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Originally Posted by blk450er View Post
So, its just a smoke thing? Not for running the truck more effieciently?
The mileage seems a little better on the lower settings.

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post #8 of 9 Old 06-24-2012, 07:13 PM
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Quote:
Originally Posted by drunk on diesel View Post
I see what you did there

I had no better advice than that, and felt it was a fairly safe reply



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post #9 of 9 Old 06-24-2012, 07:47 PM
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I just run mine on the default low boost fueling(3). Some say that the turbo lights quicker with it turned up but I haven't ran anything other than 3 so I can't say whether or not that's true. Running it with the higher levels most likely will dirty oil quicker and cake up the egr valve so I figured right in the middle would be good, plus the smoke is easy to control and as long as you don't stab the throttle right away, I can get into the throttle pretty heavy without much more than a haze at the most.

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