View Poll Results: Would you consider buying a pnp harness for installing a UTEC into your 5.5 maxima?
Voters: 120. You may not vote on this poll
UTEC Plug and Play harness for the 5.5 !!!!
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!
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
Last edited by rroderiques77; May 22, 2009 at 10:33 PM.
Thanks
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!
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.
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.
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.
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.
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.
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.
You are correct!
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.
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?
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.
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.
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.
And thanks for the link Surra.Looking forward to using your harness, as are a lot of others.
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
Joined: Apr 2005
Posts: 196
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 
Sounds good!!
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.
This is for adapting a 350Z UTEC into a 2002, 2003 Maxima.
The original post will be updated soon as im accepting orders. AT this time im not currently accepting any orders
Sounds good!!
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.
This is for adapting a 350Z UTEC into a 2002, 2003 Maxima.
The original post will be updated soon as im accepting orders. AT this time im not currently accepting any orders
Member
Joined: Jul 2007
Posts: 73
From: West Palm Beach
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...
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.
