TW chip/boost fooler

[zambonimaxx]

Howdy fellas! It's great to be back stateside and very soon to be driving the new (to me) 7.3. Now my question is that when I install my new TW chip, will I need to do a boost fooler mod to it? If so does anyone have a comprehensive parts list and write up on how to do it? Thanks a lot fellas!

~Phil

[Dmstrucks/02]

its not an absolute need to run the chip, but the truck will defuel when u hit about 22lbs of boost, I got the itp diesel boost fooler, and u just replace the stock map line with the new one from itp, it had a built in air regulator in the line! $45 I think

[CT Performance, Inc.]

Tony can tune it not to defuel..did you have him do that?

FYI: There is no defuel on the Super Duty trucks regardless of boost amount. There is an overboost code that reduces the cycle time of the IPR. The result is a slower gain in acceleration, not a reduction of fuel. The way to see if you are setting this would be to scan for the code. This is off the top of my head and it may be wrong, but I think it is a P0236 that is the code. You can set them on 94-97's, but it is a higher differential than the 99-03's. I run a MAP Pressure Relief Valve on my 95.

However, I've seen various configurations of MAP sensor alterations and I would warn that most are ill conceived. The majority of the pressure relief set ups I've seen blow off actual boost and do not isolate excess boost to the MAP side only, leaving the manifold pressure able to rise.

[Dmstrucks/02]

good to know, didnt know he could put that in the programing, thanks for clearing that up caryt

[zambonimaxx]

Cool thanks guys. I just ordered a boost fooler from ITP says that you set it so it doesn't waste the extra boost and the computer won't pop a CEL. Thanks again for the input!
~Phil

[Kyle_KleinSS]

Went with the zener diode myself

[85_305]

Is there any actual performance gain from doing this mod though??

[zambonimaxx]

Just yo keep a check engine light at bay. They are pesky for no reason when it's tuned to boost more.
~Phil

[Lloyds71Mav]

hit 27psi with my PHP chip and so far no check engine light just pulled hard.

[85_305]

So it doesn't actually boost performance any then?

Oh welcome back by the way. You didn't happen to just get back from al anbar did you?