Ecu tuning 2002/2003 g35sedan (very technical)

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Old Jul 14, 2011 | 12:15 AM
  #121  
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Originally Posted by NFSP G35
^Might want to hang tight for just a couple days.

I just got the experimental adapter harness in the mail today, but I haven't had a chance to test it.

Hopefully I'll get a chance tomorrow afternoon.
I'm willing to drive to Tally if you can make this happen... I'm right now about to contact Richard from Autosport wiring to see if he can fix the issues with the harness he made me. I'd like to make something happen SOON.

Honestly I prefer to have an osiris system which would allow me to switch maps and what not. But I guess beggars can't be choosers.
 
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Old Jul 14, 2011 | 12:18 AM
  #122  
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^If it works out, you won't have to drive anywhere


Assuming we get all the bugs worked out, the guy I'm testing the harness adapter for will start selling them. At that point, all you'll need is the adapter, and a newer ecu (and the osiris flash assuming you want tweakability)

Won't really know much until I can get this thing tested (which I'm very eager to do)
Even then, there may be some issues to work out... we'll just have to wait and see.
 
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Old Jul 14, 2011 | 12:21 AM
  #123  
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Did my pin out diagram come in handy?
 
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Old Jul 14, 2011 | 12:27 AM
  #124  
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^not sure. I think he used the FSM for all the pinouts... though he did have me doing a handstand in the passenger floorboard to double check some things
 
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Old Jul 14, 2011 | 08:19 AM
  #125  
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Originally Posted by Eric@TCGMiami
Ok, So what if I buy the following items:

2004+ ECU
2004+ Wiring Harness
2004+ Console (Dash with Speedo and Tach)
2004+ Radio-A/C Controls

Will I need ANYTHING else to convert the car from 03 to 04+ ECU?

Why not just sell you car and get one year newer?? Seems way easier and you might even break even/make some cash.
 
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Old Jul 14, 2011 | 08:26 AM
  #126  
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Because my car is paid off...

Has "emotional" history...

and these parts will run me less than 650.00
 
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Old Jul 15, 2011 | 06:25 PM
  #127  
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Oh man, this would be sweet if it works... I'm praying lol.
 
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Old Aug 22, 2011 | 05:58 PM
  #128  
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Any updates on this?
 
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Old Aug 22, 2011 | 06:41 PM
  #129  
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I got the harness, tested it (didn't try cranking because of a couple sensor issues) collected plenty of data, and sent the harness back for a couple little tweaks.

I'll update you guys once SurraTT gets done tweaking the harness and sends it back, although he's been very busy on an engine swap project.
 
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Old Aug 22, 2011 | 09:51 PM
  #130  
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Can you give an ETA or a timeline as to by when it could be ready or a test?
 
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Old Aug 22, 2011 | 09:57 PM
  #131  
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I have no way of knowing when SurraTT will be done with it
 
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Old Aug 22, 2011 | 10:06 PM
  #132  
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.....

I still have this autosport wiring harness either I'll burn it if this is a success or try again with Richard Welch.
 
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Old Aug 22, 2011 | 10:11 PM
  #133  
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Anxiously waiting
 
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Old Aug 22, 2011 | 10:36 PM
  #134  
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Will be testing again soon. Just been insanely busy! ya know making a new generation of Maximas... 5.7 gen!



There are a couple different ways to go about this. With my new setup im going to try the zecu swap again but differently. This could also be applied to the early G's
 
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Old Aug 28, 2011 | 03:13 AM
  #135  
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I'm in for updates. Really want to upgrade my car's ECU.
 
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