DIY boost fooler worth doing on e99? - Ford Powerstroke Diesel Forum
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Old 07-08-2010, 01:44 PM
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DIY boost fooler worth doing on e99?

Would the DIY boost fooler be worth doing on my early 99? I've yet to get an overboost SES light, but I thought I might do it before I do get the light.

Thoughts?
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Old 07-08-2010, 04:23 PM
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Do you have tunes? If so won't hurt. I'm running the ITP Overboost Annihilator and boosting to 26 psi wide open throttle. If I didn't have the boost fooler, I'd be throwing the 1211.
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Old 07-08-2010, 04:25 PM
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I will have tunes soon.
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Old 07-08-2010, 04:28 PM
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on my E99 i went to napa and got some small black hose, and a T fitting, i spliced my vaccum line and connected it with the black hose and cut the hose to put the T in the middle to make my own.....with all my boots tight and no leaks i can find, i've seen as high as 45 psi on my Quadzilla Monitor so maybe it wasn't the best mod to do, but its still throwing the code so who knows
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Old 07-08-2010, 05:16 PM
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Quote:
Originally Posted by Zytek_Fan View Post
Would the DIY boost fooler be worth doing on my early 99? I've yet to get an overboost SES light, but I thought I might do it before I do get the light.

Thoughts?
Do it before you get tunes. Otherwise you will probably defuel when you hit about 22 PSI.

Quote:
Originally Posted by cvdenson View Post
Do you have tunes? If so won't hurt. I'm running the ITP Overboost Annihilator and boosting to 26 psi wide open throttle. If I didn't have the boost fooler, I'd be throwing the 1211.
That wouldn't be the 1211. I forget the code for over boost but the 1211 is Injection Control Pressure Higher/Lower than Desired.

Quote:
Originally Posted by Zytek_Fan View Post
I will have tunes soon.
Definitely do it.

Quote:
Originally Posted by CloverLeafFarm View Post
on my E99 i went to napa and got some small black hose, and a T fitting, i spliced my vaccum line and connected it with the black hose and cut the hose to put the T in the middle to make my own.....with all my boots tight and no leaks i can find, i've seen as high as 45 psi on my Quadzilla Monitor so maybe it wasn't the best mod to do, but its still throwing the code so who knows
Thats because you didn't put in a boost fooler. A boost fooler tricks the PCM into thinking its only getting <22psi.

And how in the hell are you getting 45 PSI? Either the monitor is WAY off or you are running big injectors.

Or you might be seeing Absolute, which is approximately 14.7 psi higher than actual boost pressure.
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Old 07-08-2010, 05:29 PM
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Quote:
Originally Posted by Jake View Post
Do it before you get tunes. Otherwise you will probably defuel when you hit about 22 PSI.



That wouldn't be the 1211. I forget the code for over boost but the 1211 is Injection Control Pressure Higher/Lower than Desired.



Definitely do it.



Thats because you didn't put in a boost fooler. A boost fooler tricks the PCM into thinking its only getting <22psi.

And how in the hell are you getting 45 PSI? Either the monitor is WAY off or you are running big injectors.

Or you might be seeing Absolute, which is approximately 14.7 psi higher than actual boost pressure.
What he said

Depending on the tuner you may not need it. Some can tune it out.
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Old 07-08-2010, 05:31 PM
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Correct. But that will cost extra for the tunes. Id talk to the tuner and see which would be the better route. I'm gonna guess it would be cheaper to do your own.
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Old 07-09-2010, 06:39 AM
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I made one just have to play with it a little more, my 10k mod will throw a code, haven't checked what one yet but think it is the over boost one.
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