View Poll Results: Would you consider buying a pnp harness for installing a UTEC into your 5.5 maxima?
I have a UTEC and want this PNP ASAP!!!!
6.67%
I'm looking at tunning options and if this becomes avalible ill get it and a UTEC
56.67%
I dont plan to run a tunning device
0.83%
I have/will hardwire my UTEC into my factory harness
1.67%
What is this??????????????
23.33%
I have another car with the same Grey ECU connector and might be intrested.
1.67%
I have a 5th gen 
But i want a patch harness for EMU and other installs.
But i want a patch harness for EMU and other installs.
9.17%
Voters: 120. You may not vote on this poll
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I really depends on the cars modifications, and how comfortable the user is at doing their own tuning. But most will probably just run on map 0 (stock) till getting it tuned.Originally Posted by melvinman2003
I want one of these harnesses badly. So do most people on here just use the 350zx intake/exhaust maps just to get the car going before a dyno with a UTEC?
More info on this soon as i know! They are not currently in production yet. More continuous testing is being done to assure flawless operation.
After Full completion of testing the prototype harness and Utec functions, i will then place an order and at that time a production run will occur. Further details soon.
as Always thanks for Everyone's help on this project!
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Originally Posted by danger300z
IN
Sounds good!
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Originally Posted by Nevermore
hurry up!!! I want disss noowzzzz!!!
Im trying!!! Trust me!! ive been working iveryyy hard on this! It will be worth it sooooooon!
Darren, ignore the rude people. We're sure you're taking time to make these quality pieces. Keep it up.
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Its all good! everyone has helped me in some way, big or small!Originally Posted by zero2sixtyZ
Darren, ignore the rude people. We're sure you're taking time to make these quality pieces. Keep it up.
This is what happens on a VERY Rare type of product. Honestly i did not expect this big of a uproar over this, but its no problem!
and I dont even have the utec unit yet haha
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www.turboxs.com/shop_prod.php?what_category=3Originally Posted by kcxd35
What exactly does this do for you or me???
Senior Member
Thanks
Senior Member
Seems like an awesome idea, however, I have a VAFC now and when it's not plugged in, the car doesn't run well at all, I'm guessing cause it intercepts the MAF signal. Would that mean I couldn't use this harness if I wanted to get a UTEC or I would have to wire something else to make this work how it should? A little more input would be lovely, cause I do want to go to a UTEC at some point. Thanks!
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I would recommend to uninstall the Vafc, If your factory ecu harness is in stock form IE nothing intercepting any signals, or anything taking power from the ecu harness.Originally Posted by viperboy
Seems like an awesome idea, however, I have a VAFC now and when it's not plugged in, the car doesn't run well at all, I'm guessing cause it intercepts the MAF signal. Would that mean I couldn't use this harness if I wanted to get a UTEC or I would have to wire something else to make this work how it should? A little more input would be lovely, cause I do want to go to a UTEC at some point. Thanks!
Then the this PnP harness would be just fine.
The Factory ECU harness must not have ANYTHING added in that is drawing power from it, this can cause the UTEC and ECU to not get enough power thus causing issues.
Senior Member
Quote:
Then the this PnP harness would be just fine.
The Factory ECU harness must not have ANYTHING added in that is drawing power from it, this can cause the UTEC and ECU to not get enough power thus causing issues.
Then I guess that won't work for me. Like I said, the car runs terribly without the VAFC plugged in. It feels like it runs like I have a bad MAF. Isn't part of the VAFC install splicing into the MAF wire or something? Sorry, I don't know too much about it. I took it to a shop to have it done.Originally Posted by SurraTT
I would recommend to uninstall the Vafc, If your factory ecu harness is in stock form IE nothing intercepting any signals, or anything taking power from the ecu harness.Then the this PnP harness would be just fine.
The Factory ECU harness must not have ANYTHING added in that is drawing power from it, this can cause the UTEC and ECU to not get enough power thus causing issues.
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You're supposed to intercept (ie. cut) the MAF wire to connect the VAFC harness, not splice/tap into it. Originally Posted by viperboy
Then I guess that won't work for me. Like I said, the car runs terribly without the VAFC plugged in. It feels like it runs like I have a bad MAF. Isn't part of the VAFC install splicing into the MAF wire or something? Sorry, I don't know too much about it. I took it to a shop to have it done.
Anyway, back on topic please.
Senior Member
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Anyway, back on topic please.
Well, in any event, I guess it was cut. But I need to know if this harness will work with the VAFC removed because of all the wiring done for the VAFC.Originally Posted by Puppetmaster
You're supposed to intercept (ie. cut) the MAF wire to connect the VAFC harness, not splice/tap into it. Anyway, back on topic please.
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It will be fine as long as your ECU wires are hooked back up properly.Originally Posted by viperboy
Well, in any event, I guess it was cut. But I need to know if this harness will work with the VAFC removed because of all the wiring done for the VAFC.
Quote:
If you uninstall the VAFC, all you have to do is reconnect the MAF wire on the ECU harness and everything will be the same. That's the only wire that is cut, everything else is tapped.Originally Posted by viperboy
Well, in any event, I guess it was cut. But I need to know if this harness will work with the VAFC removed because of all the wiring done for the VAFC.
Quote:
Uninstall and unplug are different things when it comes to vafc...Originally Posted by viperboy
Then I guess that won't work for me. Like I said, the car runs terribly without the VAFC plugged in. It feels like it runs like I have a bad MAF. Isn't part of the VAFC install splicing into the MAF wire or something? Sorry, I don't know too much about it. I took it to a shop to have it done.
Uninstall it and make your factory ECU harness like it was from the factory.
You will be just fine.
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You are correct!Originally Posted by rroderiques77
It will be fine as long as your ECU wires are hooked back up properly.
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I've got it pretty well tuned as is and my car definately seems a good bit quicker than on map 0 (stock tune). I'm running around 26* timing over the whole powerband and solid 13.5s up to 5700 then letting it richen up to around 13.0-13.1 until redline.
Hey Sparks, what kind of gains did you experience from map 0 versus stock Maxima's?Originally Posted by sparks03max
I have no real need for tuning on a dyno although it would be somewhat useful to get the timing exact. I have a wideband and tons of info on what timing makes power on these engines. I'm going to be datalogging and fine tuning with UTI at the track this saturday if the weather holds out. I've got it pretty well tuned as is and my car definately seems a good bit quicker than on map 0 (stock tune). I'm running around 26* timing over the whole powerband and solid 13.5s up to 5700 then letting it richen up to around 13.0-13.1 until redline.
Any driveability issues with running it at a higher timing of 26 degrees?
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Any driveability issues with running it at a higher timing of 26 degrees?
Originally Posted by rroderiques77
Hey Sparks, what kind of gains did you experience from map 0 versus stock Maxima's?Any driveability issues with running it at a higher timing of 26 degrees?
Map 0 and stock Maxima are the same
also, please keep this thread on topic for the development of the PnP Harness only.
http://forums.maxima.org/all-motor/5...shed-pics.html
that is the link to his Utec install, full of information.
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also, please keep this thread on topic for the development of the PnP Harness only.
http://forums.maxima.org/all-motor/5...shed-pics.html
that is the link to his Utec install, full of information.
Sorry. Didn't mean to hijack your thread. Originally Posted by SurraTT
Map 0 and stock Maxima are the samealso, please keep this thread on topic for the development of the PnP Harness only.
http://forums.maxima.org/all-motor/5...shed-pics.html
that is the link to his Utec install, full of information.
And thanks for the link Surra.Looking forward to using your harness, as are a lot of others.
Senior Member
Alright so I've been reading and reading and reading. I'm trying to understand what exactly the PNP is. This is just saving time with it being plug and play?(an adaptor if you will). Now the 350z UTEC works in the maxima with the stock mapping? I'm assuming people with heavy engine mods looking to make more power by pushing the car to different limits in any gear, and mapping those corrections/advancements.(with utec)
My question is what software are people using to load these mappings from utec?Also is it easy to make changes in car while you see changes or advancements.(own tuning im assuming) I hope this all kinda makes sense.
My question is what software are people using to load these mappings from utec?Also is it easy to make changes in car while you see changes or advancements.(own tuning im assuming) I hope this all kinda makes sense.
Member
TippyToes, if you read the install link just above it will point you to a program that actually has a nice GUI interface to the existing TurboXS map. Yes you can tune this on the fly, thats why the UTEC allows a USB plug. Its a bad *** device. I am still waiting for this harness I don't wanna solder 90 or so wires.
I don't wanna solder 90 or so wires.
Original post updated 
thanks for calling! it was nice talking to you, if you have any other questions or ideas to improve please feel free to call anytime.
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Sounds good!!Originally Posted by The Law
Subscribing as I'm interested to get more tuning abilities.
thanks for calling! it was nice talking to you, if you have any other questions or ideas to improve please feel free to call anytime.
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This is for adapting a 350Z UTEC into a 2002, 2003 Maxima. Originally Posted by irax
wait... so... i can use this patch loom to use a 350z ecu or a utec?????
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The original post will be updated soon as im accepting orders. AT this time im not currently accepting any ordersOriginally Posted by 1wkdmax
yah man nice when can i order, you making my life easier.
Member
SurraTT the new pic looks great. I finally found time to take apart my ECU compartment and took pics. It is a VERY tight space in there. I will PM them to you when/if they finish uploading. I think I will have to take the dash out and probably make a cut with a hole saw in the firewall/ecu compartment for this to work...
Junior Member
So when do you think you might be ready to take orders.I need to know so i won,t blow the whole summer I want to be on the road by june 23 no later than july.
Guys prepare for a biggggg update tomorrow.
Also, im going to MAXUS! And im planning to bring this with me if anyone wants to see it in action! Let me know!
As im sure my black 5.5 gen with stock 17's will blend in a little bit at maxus? heheh
anyway!
Update Tomorrow!
Also, im going to MAXUS! And im planning to bring this with me if anyone wants to see it in action! Let me know!
As im sure my black 5.5 gen with stock 17's will blend in a little bit at maxus? heheh
anyway!
Update Tomorrow!
OK guys, More testing and development is taking place, thus ensuring a flawless product that will bring together 5.5 gens and UTEC's!
I was hoping to release them soon, but its going to take some more time.
I was hoping to release them soon, but its going to take some more time.
Quote:
I was hoping to release them soon, but its going to take some more time.
Originally Posted by SurraTT
OK guys, More testing and development is taking place, thus ensuring a flawless product that will bring together 5.5 gens and UTEC's!I was hoping to release them soon, but its going to take some more time.
