Going maft pro....need some input.

SLO-MK3

SLO-MK3

Not on the 1jz bandwagon
Nov 4, 2006
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Plumas Lake, CA
Ok, so I got pretty much everything soldered in, but I have a few questions for the rest.

1st. I need a little input from some of you who have already installed the maft pro w/ speed density. Any recommendations on where to install the ait sensor. I've got a couple locations circled in the pic. I know it should be close to the tb, but it gets rather warm there and I want to avoid heat soak.
what about the other spot on the elbo? Any objections to that?
p545774_1.jpg



2nd. Now, I've read through tons of threads on this topic, and its been discussed plenty, but no clear answers.(if you've got a link w/the answer, post it please)Orange wire=widebandinput
purple wire =wideband ground

I have aem uego, so can it be wired in to these two wires? The uego has a signal output wire, so the orange wire would connect to that right?
And the other to any ground, or does it have to be the same ground wire that the gauge is connected to? I don't see why it would make any diff.
Or, am I stuck with using the stock o2 monitor wires since I dont have the
Lc-1?

3rd. Hack mod. Before I go diving into this one, and potentially -F- something up, is this truely necessary. I live in the valley and its about 100 or so ft. above sea level.

Thanks for any input guys.
 
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pimptrizkit

thread killer
Dec 22, 2005
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i would put it closet to the shock tower or maybe closer to the front of the car maybe?... i instaled mine between the valve covers lke you thought of, but it heat soaks... it doesn't seem to affect tuning to much, and as you speed up the air temp drops like the cooler moving air should, but long periods of idling you'll see the intake temp creap up,

i belive that shock elbow is a good spot, i am running my brothers in the accordian hose at the moment, air temp stays alot cooler until the bay is completly heated, then only see 115 max so far. where i have seen 120-13 degress idling with it in the valve covers.

the orange wire is the w/b \o2 input, and the purtple from the 10 pin is the ground, the purple from the 6 pin is aux1 and we tend to tap into vf with that one to monitor the ecu's short term fuel trim.

yes ground the w/b sensor and the purple wire of the pro together. this way the resistence is the same and should show the correct vaules for each other.

the maft pro works with like 4-5 different w/b's, your's should work.


and for the hac ?

do you ever plan to drive your car out of the valley? if so you might want to consider it,
 
SLO-MK3

SLO-MK3

Not on the 1jz bandwagon
Nov 4, 2006
246
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0
Plumas Lake, CA
Pimp, thanks for the response.

Also, I have (2) 6pin harnesses. One has the plug that connects to the map with one loose purple that taps into vf. The other has the same color wires with the same coordination of colors, but I'm guessing I don't use that one because the other is plug and play right?

About the hac, I'll be staying in the valley for about another year. So as long as I dont go over the mountains I should be fine? I'll do the hac mod at some point, but for now, I'd rather not if I can avoid it by being at low altitudes.
 
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pimptrizkit

thread killer
Dec 22, 2005
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i belive it will work but you may see problems going over 500 feet.

it;s a fairly simple mod, just read up and prtice soldering some.

yeah use the plug and play harnes. , the other one i just saved for a back up incase it becoems old and worn out..
 
SLO-MK3

SLO-MK3

Not on the 1jz bandwagon
Nov 4, 2006
246
0
0
Plumas Lake, CA
pimptrizkit said:
i belive it will work but you may see problems going over 500 feet.

it;s a fairly simple mod, just read up and prtice soldering some.

yeah use the plug and play harnes. , the other one i just saved for a back up incase it becoems old and worn out..
Click to expand...



OK, did the hac mod. Your right, it wasn't that difficult.

Now I just need to wire in the W/B, but not to sure what wire from the uego connects to the maft pro orange wire.

The uego has two output wires, white(analog output)=conncts to any unit that accepts a 0-5 voltinput.

And a blue wire(serial output)=connects to a RS-232 com port for hyper-terminal data logging.

I want to data log as well as use the target a/f feature, so which one of these wires do I connect to orange?

Also for the w/b/ ground, it connects directly to maft pro purple wire with no chassis ground correct?
 
SLO-MK3

SLO-MK3

Not on the 1jz bandwagon
Nov 4, 2006
246
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Plumas Lake, CA
Well, I got the AIT mounted in the elbo by the pa. fender. Now I just need to figure out this w/b mystery so I can put everything back together and start tuning.
 
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pimptrizkit

thread killer
Dec 22, 2005
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vancouver Wa
connect the uego to analog to the maft po,

the serial connection is more for a seperate devices,

the lc-1 you connect analog 2 since it's set up how the pro wants to read it, 0-5v 5 being lean..

i only noticed the heat soak while the engine sat, i never had hard started hot conditions but it was a problem starting cold... i think i had more of a tune issue.
 
SLO-MK3

SLO-MK3

Not on the 1jz bandwagon
Nov 4, 2006
246
0
0
Plumas Lake, CA
pimptrizkit said:
connect the uego to analog to the maft po,

the serial connection is more for a seperate devices,

the lc-1 you connect analog 2 since it's set up how the pro wants to read it, 0-5v 5 being lean..

i only noticed the heat soak while the engine sat, i never had hard started hot conditions but it was a problem starting cold... i think i had more of a tune issue.
Click to expand...


FINALLY the answer I was waiting on! Thank you very much pimpin
 
americanjebus

americanjebus

Mr. Evergreen
Mar 30, 2005
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pimptrizkit said:
connect the uego to analog to the maft po,

the serial connection is more for a seperate devices,

the lc-1 you connect analog 2 since it's set up how the pro wants to read it, 0-5v 5 being lean..

i only noticed the heat soak while the engine sat, i never had hard started hot conditions but it was a problem starting cold... i think i had more of a tune issue.
Click to expand...

SHIT, so when i hooked up the yellow wire from the LC-1 to the wideband input in the maftpro harness i did the wrong one huh, That was Analog 1, So i need to go back and hook up Analago 2 (brown Wire)?

Luis
 
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pimptrizkit

thread killer
Dec 22, 2005
1,572
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vancouver Wa
americanjebus said:
SHIT, so when i hooked up the yellow wire from the LC-1 to the wideband input in the maftpro harness i did the wrong one huh, That was Analog 1, So i need to go back and hook up Analago 2 (brown Wire)?

Luis
Click to expand...


yeah, i was just playing with my lc-1 today and i clicked the default settings button, and it flipped my lamba to analog 2 "the brown wire" and i had previously set it up with the yellow wire, the sad thing is, i think the yellow wire is set up correctly for the stock n/b so all you have to do is connect the wire? if i am right.
my problem was i was just going to swap the setings for each analog out put, but i could not get them to save, then my comp blue screened, fin pos..
 
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