Support for 350Z ECU

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Support for 350Z ECU

Postby Ziggyrama » Thu May 31, 2007 5:46 am

Hey guys,
well, the time has come and I sold my 04 WRX. She was very good to me and I had great success with tuning her. I got myself into a 350Z and started to look into tuning options for 350Z. Well, sadly to say, the offerings are very limited. There is really no good alternative other than paying large amounts of money for a reflash which I have no way of really verifying. The options I found so far out there are:

1. Technosquare/AAM reflash - looks like a basic stock ECU reflash. You tell them your mods, mail them your ECU and they flash it for you. From what I can tell, people just blindly assume it's good and it's doing what is advertised. I've seen dyno plots and the gains are small at best. - $600 and up

2. Cipher - a tuning tool, basic logging, allows up to 2 degrees of advancement, yikes. Seems very limited in what it can actually change in the stock ECU programming. - $400

3. UTEC - full featured tuning solution, works well, expensive - $950

4. eManage - another full featured tuning solution, generic support for lots of cars, understandibly it seems like people have issues with some of the features of it not working correctly with Nissan ECU - $500

Seems like the Z tuning community is not nearly as mature as the Subaru one. There aren't many options availble and they are very limited as to what can be done with the cars. There's plenty of people wanting to tune but it's so undeveloped and lacking solid knowledge of tuning that most either give up or open up wallets and pay insane amounts to tuners. A project like openECU would blow away most offereings out there. I am curious to see how many people here would like the Z support. I can tell you that the demand is out there. The community is ripe for a shake up. I personally would LOVE to get involved with stock ECU tuning again. A platform like VQ35 engine has potential. It's factory tuned for 91oct. There's plenty of NA upgrades in forms of exhaust, plenum extenders, intakes, cams, etc.

So, I guess the first thing is to figure out which chipset is used on the VQ35 engines. From what I can gather, the older version of Nissans, VQ30 engines used a Hitachi processor, H8/536. Chances are the newer models also use a Hitachi chip, most likely newer. If I were to yank the ECU out, what kind of chances do I have of being able to see anything meaningful on it that would provide more info?

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Postby Jon [in CT] » Thu May 31, 2007 7:34 am

Nissan supplies a free Windows program which can reflash a 350Z. Maybe that'd be a good starting place.
Jon [in CT]
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Postby Ziggyrama » Thu May 31, 2007 7:49 am

Jon, thanks for the link. I've been there before and looked through the links. All of the download programs are designed to work with the CONSULT-II or J2534 devices that Nissan uses for ECU reflashes. Without those, it's really difficult to do anything. I doubt a dealer would let me "borrow" one of those :D
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Postby NeverLies » Thu May 31, 2007 9:45 am

Why not buy one J2534 ? It can be used on more and more vehicles.
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Postby Ziggyrama » Thu May 31, 2007 10:15 am

NeverLies wrote:Why not buy one J2534 ? It can be used on more and more vehicles.

I need to look more into J2534 standard and familirize myself with how it works. Perhaps it's possible that once the ROM is dissassembled, the flash portion can be done with a J2534 interface. The standalone hosting devices are pretty expensive, $1000+ but the cable alone is fraction of that and might provide enough interfaces to be dangerous.

EDIT: looks like my 03 350Z does not support J2534 standard. Only 04 or newer models support it. Crapshoot.
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Postby blkscooby » Wed Jun 13, 2007 4:07 am

Mike, I KNEW you wouldn't be able to not mod and tune the Z. I told you. :lol:
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Postby mxturboracer86 » Thu May 01, 2008 12:51 am

Here is something that might help. I downloaded the 350Z reprogram file, I will send it to colby and see what he thinks
(565.54 KiB) Downloaded 1031 times
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Postby christian_piasini » Thu May 01, 2008 12:01 pm

Maybe this are interested too...

Is the last 350Z 2008 model with 313HP.

It is supported by our device too.


Christian Piasini
R&D Piasiniengineering
(1023.69 KiB) Downloaded 928 times
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Location: Italy

Postby walle » Thu May 08, 2008 11:24 pm

is this bin a direct download from the ecu?
I am very interested in flashing z33 ecu an have consult 2 and 3 acces for doing it..
any definitions?
also I have many stock nissan images for use with original equipment if you are interrested :D
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Postby krlo » Wed May 21, 2008 12:41 am

This is how looks like Ziggyrama option number 2 (and I'm pretty sure that it's the same with option number 1).


No control to any correction map, active timing, cell values (obliged to remove them instead of teaching the ecu which are the new limits)... it's still something... but we're faaaaar from something complete.
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Postby peewee » Wed Jun 04, 2008 11:52 am


Can you post the really original file?

BR Paul
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Re: Support for 350Z ECU

Postby TomR » Thu Mar 05, 2009 1:33 am

Does anyone know what the LOADER80 stands for in this .bin file? I've seen other 350z files with LOADER10 and LOADER50 as well.
I'm guessing the SH705822N after it is the processor type.

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Re: Support for 350Z ECU

Postby travman27 » Thu Jun 04, 2009 10:02 am

GF just bought an 2003 350z track edition - just curious if there have been any opensource development for the 350z?

- Been a user of ecuflash since it was first released on my evo, would be fun to get to play around on something different :D
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Re: Support for 350Z ECU

Postby D-VO » Fri Sep 18, 2009 10:17 pm

Support for the 350z would be a fantastic addition to ECUflash.
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Re: Support for 350Z ECU

Postby freshda9 » Wed Oct 07, 2009 9:03 am

Code might be floating around somewhere. Uprev flashes nissan vehicles so there might be a chance someone could get this to work for Nissan line.
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