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Joined: Jun 2003
Posts: 25
New CEG\'er
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OP
New CEG\'er
Joined: Jun 2003
Posts: 25 |
Hi all, just have a quck question. Where does the sensor go that was originally in your air bow when you are converting to a short ram? It is located in the top fire wall side of the air box. Any help would be great
Dan
2000 V6 SE Sport MTX
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Joined: Aug 2002
Posts: 2,857
Hard-core CEG'er
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Hard-core CEG'er
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most people just drill a hole in the rubber(not filter part)of their filter,and insert it there...
new,new ride!
'99 svt
black/mnb
'95 mustang gt sold!
'98 svt #800 sold!
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Joined: Aug 2002
Posts: 689
Veteran CEG\'er
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Veteran CEG\'er
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Is it vital to have that connected? I have the MAF hooked up and fine, but that one hasn't been hooked up for a while...
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Joined: Feb 2003
Posts: 1,254
Hard-core CEG\'er
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Hard-core CEG\'er
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i hooked up a breather from my PCV to a seperate breather filter and got a "T" fitting and plugged it into there straight from the PCV and the Vacume line.
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Joined: Jul 2002
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Scourge of the Master Debaters
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Scourge of the Master Debaters
Joined: Jul 2002
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Originally posted by 97CS:
Is it vital to have that connected? I have the MAF hooked up and fine, but that one hasn't been hooked up for a while...
Well, maybe not critical, but that's the IAT (Intake Air Temperature) sensor. Since colder air is more dense, the computer takes a temperature reading of the incoming air, and can then adjust A/F in conjuction with reading from the MAF. Leaving it dangling in your engine bay, especially not close by the intake, may cause the IAT to get warmer readings from engine heat, making the computer think its getting warmer air than it really is.
I have heard of people just leaving it dangling around with no real ill effects, so I guess its up to you as to how you want to deal with it.
Beer is my Gatorade.
Hooray Beer.
'98 "Sport" Pacific Green
'98 E0 SVT Silver Frost
Pictures
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Joined: Sep 2000
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Hard-core CEG'er
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Hard-core CEG'er
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Originally posted by hetfield:
Since colder air is more dense, the computer takes a temperature reading of the incoming air, and can then adjust A/F in conjuction with reading from the MAF.
That is 100% incorrect!
I do not know who started this terrible information, but it is dead wrong.
The IAT has NOTHING to do with fuel delivery.
The "MASS" (or density) of the air is measured by of all things... The Mass Air Flow Sensor. Colder, denser air will register as such and the PCM with respond accordingly.
The only thing the PCM uses the IAT for is to determine if it needs to add or pull timing based on the incoming air charge temperature.
If the IAT is disconnected it defaults to 140 degrees (-40% timing!)
I can also tell you if the IAT is left hanging it will read considerably higher and much less accurately (I.E. random) then if mounted properly and AWAY from any objects that would suffer from heat soak. (I.E. manifolds or metal pipes for instance!)
2000 SVT #674
13.47 @ 102 - All Motor!
It was not broke; Yet I fixed it anyway.
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Is it possible that I may lose even a little power from leaving the IAT dangling? And about how far before the MAF should it be, if I were to drill it in...
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Joined: Sep 2000
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Hard-core CEG'er
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Originally posted by 97CS:
Is it possible that I may lose even a little power from leaving the IAT dangling?
Yes. I stated as such as a hotter reading will cause the PCM to pull timing.
2000 SVT #674
13.47 @ 102 - All Motor!
It was not broke; Yet I fixed it anyway.
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Joined: Sep 2000
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Hard-core CEG'er
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However do any of those links pertain to the EEC-V (or IV for the 95's) system or code used on our cars though?
Some of the links are about setups without a MAF (I.E. speed density, karman, map, etc) That's another matter all together.
Some of those links don't even have anything to do with the IAT sensor at all??? (For instance the Ford truck one) 
Also I am not making a blanket statement that the PCM does not use the IAT for some form of adaptive fuel control on every system. However on ours it does not, nor would I "expect" most MAF based setups by design would either.
2000 SVT #674
13.47 @ 102 - All Motor!
It was not broke; Yet I fixed it anyway.
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