AIH delete plug for boost guage install?

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Feb 8, 2006 | 10:22 PM

fei1

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Mountain Pass

Joined: Feb 2005

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AIH delete plug for boost guage install?

Hey guys I have been reading and searching, and reading some more from this awesome site. I have my boost guage all wired up but I want know where or what is the best location? I was wondering what effects will the AIH delete plug have on my performance as well as regular driving in cold temps? I also would like to ask what I should do with the wire assembly that is already in my AIH sensor? Where did you put it? And one more final question, would I be better off with the T in the map line (pros and cons vs. the AIH)?

Thanks a bunch,
Mitch

P.S. If this helps at all I have an 02 F-250 with the 4" MBRP stainless exhaust system, Pyro and Tranny guages hooked up and running and a Superchip (high setting) I live in NE Pennsylvania.

Feb 8, 2006 | 10:47 PM

aklim

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Joined: Jan 2006

Posts: 7,308

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From: Hartford, WI

I coulda have sworn someone said it would throw a code if you do the AIH unless you put a resistor in the circuit to fool it.

Feb 8, 2006 | 10:55 PM

Mopey

Senior User

Joined: Apr 2004

Posts: 187

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It will throw a code without a resistor wired in. You can make your own or purchase one online. The code it throws is supposed to be a soft code so it does not affect anything to do with the operation of the truck. As far as I understand the only time the AIH will turn on is below 32 F, extended idling (20 mins), and oil temp below a certain temp, with the transmission in neutral or park. The AIH is for emissions purposes and helps to rid the white smoke when left idling for a while. Hope this helps, that is how it was explained to me.

Feb 8, 2006 | 11:25 PM

h2guy

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Joined: Oct 2005

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Quote:

I also would like to ask what I should do with the wire assembly that is already in my AIH sensor?

This sites installation instructions may give you a clue.

http://www.dieselsite.com/index.asp?...PROD&ProdID=48

Feb 9, 2006 | 06:11 AM

fei1

Thread Starter

Mountain Pass

Joined: Feb 2005

Posts: 122

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Thanks for the advice. Right the temps are pretty cold and most of the info the site gave is current and will cause the AIH to activate. What can do to use the map line, and will I get the same results? If I do use the map line, do I need the dual relief valve offered through Black Cloud Diesel?

Feb 9, 2006 | 08:52 AM

jtharvey

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Joined: Oct 2004

Posts: 7,413

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From: Columbia, MO

Quote:

Originally Posted by fei1

If you hook into the map line and have the dual relief valve, you'll get a false reading. You'll get the reading that the MAP sensor sees, not the real boost numbers. When you hook into the AIH plug, you get the actual boost numbers the intake sees, and it could be much higher. Trust me, I've had it both ways. I never saw more than about 18-20 psi with the MAP line. In the AIH plug, I easily saw 30+ psi. I try to keep it under 25psi, so if I had kept it in the MAP line, I could be damaging my stock turbo and not know it. Plus, what's the point of a boost guage if all you're reading are false numbers anyway.

The other option to keep it in the MAP line is to run a regulator, not a relief valve. The MAP line regulator functions by limiting the amount of pressure the MAP line sees, just like a regulator on an air compressor. Where as the relief valve "leaks" or bleeds off the excess pressure. I've had a blow off valve, and now I have switched to a regulator. If you have the regulator, you can put the Tee for the boos guage in the MAP line as long as it's between the regulator and the intake.

Feb 9, 2006 | 09:28 AM

fei1

Thread Starter

Mountain Pass

Joined: Feb 2005

Posts: 122

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Great I guess I wil go with the AIH delete plug. Do you guys think I will have troubles with the codes it could set off, and the temperatures around here? If I'm going to have a problem with the codes where can I get one, or how do I fix the situation?