I got an email from Technosquare today concerning my ECU i sent to them in Japan..

They are downloading the data right now. It seems like the US spec ECU has the same hardware as JDM spec one. They seem to have a way to work around the key inmobilizer too (means that you can swap ECU around, mainly theft protection if you put in a different key it will check the ecu serial # to start the car).

So far it looks good...

Techtom flash reprogramming device lets you overwrite the ECU with your performance data from their PC. so pretty much means that most of the programming can be done either thru in-car reprogramming from diagnostic port and direct reprogramming from ECU connector on the bench thats hooked up to a computer



The ECU (along with a report) will return to the 'States next week.

i'll keep everyone posted.

--Cheston

 

Awesome! cant' wait to see results

 

Keep up the good work

 

Hopefully the car will have some noticable gains and runs more efficient.

Can't wait!!

 

WORD UP! bout damn time!!
<-------Mr.Fairlady wants a ECU upgrade badly!!!


Did they charge you for that?

 

Patience dude. i got work to deal with ya know. :P

 

Chebosto, Great News. Keep us posted!

 

the ECU comes back to the US this week,

man. i just hope they have some good news.

im stoked. i mean. how bad *** would that be? finally a US spec ecu..

 

YES!!!!!

I can't wait to hear about the specifications. That's good news indeed. Keep us Updated!

 

All you need with your new ECU is a little computer that links up the ECUs from two different cars. It only needs two functions... Copy, and Paste.

 

i only wish it was that easy.

alot more than that has to happen.

if you've ever seen actual ecu programming done, its pretty crazy. everything is in Hex code... and you'll have to manulaly search for the certain number sequences to change...

but it might be slightly different with the newer systems out now...

 

ches...in another thread didnt i read that its supposed to be comming in today? well i hope it is and can't wait to see ur gains

 

in the words of snoop, "tizzight"

 

Hey guys-
i briefly spoke the guys at Technosquare, they want the ecu for another week, to try to get more info about it, so i said ok, as long as they think they can have something productive... i guess its just patience.

i know everyone wants a chip now but hey, if no one takes their time to do it right the first time, there's no point in getting anything out anyway...

i will keep this thread updated when i get more info.

thanks

--Cheston

 

So they are doing a dump right now, but are they going to modify anything on your ecu? did you tell them to raise redline, and change the a/r ratio? Thanks!

 

This is what i told them to look for:

-Rev limiter,
-Immobilizer Bit
-A/F codes
-Timing.
-O2 sensor "release" <~~they prolly wont do this cuz its 'illegal' to mod these things, but would help if your stock cats happen to fall off some how.
-If we do have a speed limiter, to find that too.

 

Looks Good. Yes, the Z is suppose to have a speed limiter set at 156 MPH.

 

so i wonder how fast the Z is ungovernered?

 

man the suspense is killing me and now another whole week!!!!......ahhhhhhhh!!!

 

Mind you, the longer they have my ecu.. means i cant drive it.
i could push it.... but....

 

His brain....it's....it's.....GONE !!!

 

i was just wondering how does technosquare know that this will provide any gains? do they have a US-spec 350z there? im confused...i just hope this will provide huge gains

 

I can't belive there's no one in this forum who programs in Assembly. There has to be someone.

Does anyone have the dump from the ECU? I'm sure if we have the contents it woudn't take too long for someone to tear it apart...

 

We also have one over in Japan getting re programmed. Well see how it goes.

 

im just wondering what company is doing it?

 

To be honest I have no idea but I know it arrived there yesterday for the FEDEX tracking number. Well see hoe it goes. Should be back here next week.

 

cool

 

I program only in assembler, but it's not that simple. I didn't read the whole tread, just skimmed. The dump only takes a minute, figuring out what the dumped program is doing takes some time. Does any one know what type of CPU is used? Then you have to know the address or port of each input signal, using the logic of the program to try and deduce that... O2, throttle position, etc. And then of course just doing the reverse engineering is illegal, but I don't really agree with that. I haven't done this sort of thing since the 80's and things have changed a little, but they have prolly figer'd out lots but have to go over and over to try to make sure they are interpreting things right. But I WANT ONE... just let us load new maps and maybe disable or change a few things like rev, speed... etc. Sorry for babblin, just had to get on this thread.

 

Agreed, its not super simple, but it can be done.

As to legality... lets not go down the road of the DMCA/Reverse Engineering/etc. We don't have enough room on this board.

Yeah! A loadable/programable ECU would be VERY cool.

 

They have MY us-spec ECU, which they will compare with JDM, see if the JDM program will work on mine, then i get mine back, and dyno tune it with their laptop attached to my car running with their interface..

as for loadable programs. its a matter of plug-in-play with their interface unit and loading A/F maps already done on the computer.. sounds crazy but doable..

as for when the ECU resets, it will NOT erase the program that will be FLASH'd on.. sweet! so in all likelyhood, Turbo/NOS applications COULD be programmed...

DWNSHIFT: who did you sent it to? or is that trade secret


in all reality, ECU would probably be the easiest mod to do. no hard elbow greasing! hehe.