Did the 4.7 diode boost fooler

[Lonno]

Some Super duper moderator should post alabamafrogs write up on this in the tech files and maybe let him name it like that zoodad feller. Just a thought.

[Strõkër~X]

what does this mod do? show some pics or threads or something......

[Lonno]

Its just a real simple MAP fooler.

[mschn99]

Originally Posted by dlonno

Thats exactly where I bought mine. Next, I'm gonna try to build a baldwin filter intake. Mines a 6.0 so the placement will be different than the 7.3. Thanx frog.

the stock 6.0 filter will actually flow more air and filter better than the baldwin filter.....you would be taking a step backwards....

[Lonno]

Originally Posted by Marc

the stock 6.0 filter will actually flow more air and filter better than the baldwin filter.....you would be taking a step backwards....

Thanks for saving me time and money.

---

Last edited by Lonno : 06-09-2009 at 12:15 PM.

[alabamafrog]

Just as for clarity, the Zener mod is just a map fooler. If you run high boost and have trouble with defueling and over boost codes then you may need a map fooler. You can buy a 4.7 volt Zener for around $1 and install in minutes. The factory map sensor is just a pressure sensor with a 0-5 volt output that goes back to the computer. By installing the 4.7 Zener you make the computer see the same voltage as before from 0-4.7 but stick at 4.7 as your boost goes higher, thereby fooling the computer into thinking you are running normal boost and preventing it from defueling. Many folks do this the mechanical way by installing blow off valves or pressure regulators in the map sensor hose. The 4.7v Zener is just a clean, cheap, electrical way of doing the same thing. To hook it you simple splice the banded end of the diode to the LG/BK wire and the other end of the diode to the GY/R wire at the map sensor. There is not really anything to take a picture of, it is so small and insignificant looking.

[Blue01F250]

I got one on the way!!


I like the idea of a less cluttered engine bay and a cheaper alternative

[alabamafrog]

By the way the diode was suggested to me by a very smart guy on another forum a year or two ago and I figured out how to hook it up on a couple trucks and it worked great. Like most good mods, it doesn’t belong to just one person and should be named for what it is or does instead of who found it. Yall would not believe how long it took me to figure out what the heck a zoodad was when I first came to this board!

[Lonno]

FYI anyone who wants to do this. I should have about 8 4.7 zener diodes left over by Monday. The diodes themselves cost about a dime but aren't the easiest to find. I'll mail anyone who wants the extra ones for free with a couple wire taps.

[Cj Ford]

i bought 5 for $1.00 on ebay...I havent got them yet they are being mailed... if anyone needs one let me know i will have extras...