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Discussion Starter · #1 ·
I'm still a newbie to all of this modifying on our MX6's so im going to ask some questions for all of those ATX owners. How do u install the tranny cooler? and how do u install the IAT? I know it makes your car atuo shift harder and i know its very cheap, but i dont know how to install it or where to get one. Help me out from scratch thanx.

94' MX6 LS atx. w/ very basic mods. NGK plug and wires, K&N filtercharger, and Racing Design muffler.
 

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http://members.xoom.com/mutation9/iat.html

or

Quoted from somebody's site, i forgot who, but here it is
btw his site is down so i had to copy and paste from my own copy of the installation.

How to do the IAT mod

Installation:

The first and most important step to doing this is to cut the IAT wire. There are five wires on the plug that goes into your VAF (thing behind stock airbox). The one closest to the front of the car is the one you want to cut, this is the ground for the IAT. Make sure there's enough room on either side of where you cut the wire so that you can strip it and tap another wire into it... also try to make sure that you can reconnect everything in case something goes wrong. Pictures 1 and 2 show the location of this wire, in pic 2 my fingers are touching where the original wire was cut and the new wires spliced in. Cut the wire and strip back about a 1/4 inch or so on both sides of where you cut. Now get two new wires about 5 feet in length each, or whatever length you'll need to go from the VAF to where you mount the switch for this in the interior. Strip both ends of both of these wires (they're black in the pics i took), and attach one end of each to the exposed wires where you cut the IAT. At this point, connecting the exposed ends of the new wires should close the circuit and make your IAT functional again, this is in effect what the switch will do. Now you have to run these new wires through the firewall (see pic 3, yellow square is where the wires go through). There is a fairly large rubber grommet there from the factory you can use, alot of people put the power wires from their amplifiers through here as well. http://www.comcat.com/~rage/probe/firewall.jpg has another pic of this location. I put some black wire loom around the two wires so it wouldnt look so shitty in the engine bay, since everyone knows that engine aesthetics are a key to performance! Run the two wires through your interior however you want to hide them until they get to where you're going to mount the switch. Now just let them chill there for a minute, and go back and electrical tape or solder all the bare wire in your engine bay if you havent already. For mounting the switch in my slushbox, I just popped that black plastic piece out next to the shifter.. then I made a hold in it and sanded it out using this crazy grinder thing until there was a circle that the switch would sit in perfectly. (dont make it too big! snug = good). Connect the wires to the back of the switch, directions for that vary by what type of switch you're using (Pic 6). A simple open/close circuit switch will only have two connectors on the back though. You *should* solder these too, but its isnt necessary. Once your wires are connected to the switch and the switch is installed wherever you're putting it, you're ready to test it out. Turn the car on, the check engine light should be off and everything should be working normally. Make sure the switch is in the closed position so that the IAT is functioning as it normally would.. this mod is actually only in effect when the switch is open. After driving for a mile or so to let the intake temperature get up to normal (the CEL wont come on when its cold), find a red light or stop sign somewhere, preferably one where you can accelerate quickly from. Flip the switch now, and your check engine light should come on... this is normal. It's just the ECU telling you that the IAT isnt workin.... well duh! Thanks Mr ECU. Some people say that having the IAT disconnected while accelerating bogs their car down, i havent noticed this at all though. You can either leave it off from the launch of flip the switch off once the car gets up around 4k rpms or so. Either way, floor your car or accelerate heavily, and make sure the switch is off and the CEL is on when the car shifts. You'll immediately notice the difference, trust me! No more mr fuel cutoff, no more luxury shifting, no more horrible noise when the car shifts. Just hold on to the wheel tightly, and dont use this trick more than you have to. Enjoy your faster car!


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Wow, that was a really long way to say the following basically...

cut your IAT wire and run some new wire off it to a switch so you can turn it on or off.



Tools required:



Well here they are.. the tools. Some wire loom, a snapple (VERY IMPORTANT),

wire cutters/strippers, scissors, 50 ft of 16 guage wire, my fuse box cover (?),

some electrical tape, and a rocker switch of some sort.


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Comments: Wow. That was all I could think the first time I felt that new improved

1-2 shift.. the 2-3 and 3-4 get gradually less noticeable, but they're still firmer

and quicker. But the 1-2.. tires break loose and your head snaps back. The



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Suggestions: Dont do this all over town, keep it for races. The switch looks

cool too, and its nice to know that more performance is just a simple switch

away! Make sure your connections are good with all the wires you spliced,

because if something comes loose your IAT will always be disconnected
 

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Discussion Starter · #3 ·
whoa thanx for the info man, i also have another question though, will it damage my tranny even if i get a tranny cooler?
 

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no the IAT won't damage ur tranny. They're only sensors so if u leave the switch on all the time u will notice that the check engine light will be on when the switch is on, just because the ecu is telling u the IAT isn't working. No problem ignore that when u have it on. Also make sure u do the wiring well, if it comes off, u'll end up with a check engine light until u fix it. Later. Remember: Use it only before the race. The Tranny cooler helps...ALOT!
 
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