2009 JDM GRB STi Group N ROM

west_minist · **Posted:** Sun Jul 21, 2013 12:49 am

That's means the 2008 jdm wrx is very diff to the 2009 jdm sti.

west_minist · **Posted:** Mon Jul 22, 2013 7:24 am

ckibue wrote:

More for cross check please:
SD VE Map Vs RPM Comp
Data: C15C0
Y axis C1548
X Axis C14C8

Is the data looking right? [value]*2/65536

Attachment:

SD VE.png

The values are much diff to the 16bit GpN rom

throttlehappy · **Posted:** Thu Jul 25, 2013 7:22 am

west_minist wrote:

That's means the 2008 jdm wrx is very diff to the 2009 jdm sti.

Very different, SI Drive being number one

The BIU wont accept that ROM image either

west_minist · **Posted:** Thu Jul 25, 2013 9:20 am

I know the subtle differences, but I don't want to push it to work and lose the ecu. I will email ecuflash. Even the exiga rom would not work while the maps are all the same.

The JDM Impreza S-GT is nice car for short runs in the country. Lol

west_minist · **Posted:** Fri Aug 09, 2013 8:37 pm

Any updates?

rac · **Joined:** Tue Apr 15, 2008 11:11 am **Posts:** 162

curious as well

ckibue · **Posted:** Fri Aug 15, 2014 11:28 am

ckibue wrote:

The rear end of the board has 2 jumper wires and two wires from the 16 position Map_sel switch soldered on. One jumper connects B134 Pin 4 to B135 Pin 17 and the other connects B135 pin 12 to B136 Pin 13. The Map_Sel switch black wire is connected to Grnd at B136 Pin 6 whereas the White wire is connected to B135 Pin 24. This is with reference to the 2009 USDM STi Workshop Manual which has several ecu-pinouts matching the JDM version. B134 Pin 4 connects to the Manifold Air Temperature sensor found in the JDM 2.0L STis whereas B135 Pin 17 does not seem connected on the JDM 2.0L STi but connects to the Fuel Temp Sensor on the USDM 2.5L STi.
Anyone have a complete copy of the 2009 JDM Ecu-pinouts and / or wiring diagram?

From this, looks like EDM and USDM STis could use the cruise control switches for fuel type selection as the wires from the mezzanine board hex switch go to the same input on the ecu once the jumpers are in place as in the pics. See attached pic below for a USDM 2008 STi.
Has any brave soul tried :roll:

flashing this rom in a 2008 USDM STi with the key start and tried starting the car? I tried on a pushbutton JDM 2008 STi here, engine cranks ok but no fuel injection hence no start :-(

This keyless start equipped car seems to have a different immobilizer sequence through a certification ECU whereas the key start cars' immobilizer sequence is through the Body Control Module and is more likely to start with this rom, theoretically.

ckibue · **Posted:** Tue Sep 02, 2014 12:32 pm

td-d wrote:

ckibue wrote:

From looking at the actual ECU board and the jumper wires soldered therein, the Fuel Temp Sensor Input might be actually reading Air Charge Temp, my thoughts.... and the WGDC and Target Boost tables use Throttle Plate Opening Angle ....

That would make a lot of sense - Air charge temp would be a key input in an SD setup. They've obviously highjacked that SSM routine. Is there any way you can check that - log SSM Fuel Temp, and raise the temperature around the temp sensor?

Got this into a JDM 09 Spec C and after the usual Immo handshaking :-)

, she fired right up, I did a few logs and sure enough the Fuel Temp routine is actually sampling the ACT From the manifold mounted air temperature sensor. Throttle feels more responsive too and the 2 stage ALS and LC sure do work. :-D

darkshado87 · **Joined:** Wed Aug 13, 2014 10:22 am **Posts:** 11

Merp wrote:

That's a normal error when attempting to flash roms across different models/years.

Is there a way to know what years are compatible? For example is 09-14 same?

ZedSTi · **Posted:** Sun Nov 16, 2014 3:26 pm

Is possible to flash this rom into a EDM STi 2009 ?

_Adam_ · **Joined:** Wed Sep 17, 2008 6:10 am **Posts:** 19

has anyone been able to compile an ecu def file? or an ecuflash definition file?? thanks

west_minist · **Posted:** Sun Apr 12, 2015 10:44 pm

I had a 2009 JDM STI using the stock rom AZ1G500F. I could not load this 2009 JDM GpN rom.

ckibue · **Posted:** Sun Apr 12, 2015 11:15 pm

west_minist wrote:

I had a 2009 JDM STI using the stock rom AZ1G500F. I could not lot this 2009 JDM GpN rom.

Will only work on a key start models and also requires some immobilizer hardware and software tweaks as well.

puamon · **Joined:** Tue Dec 08, 2009 7:41 am **Posts:** 9

Hi!

Who has the most complete version of .xml for the file?

mrsaturn7085 · **Joined:** Mon Feb 24, 2014 7:53 pm **Posts:** 4

puamon wrote:

Hi!

Who has the most complete version of .xml for the file?

I'm fairly new to this board, but also very interested in this - this ROM is significant in that with a jumper harness, I feel that it may allow for the '04-'06 USDM STi to have a 32-bit version of the CarBerry ROM. I'd be curious to see what happens if you plugged this into an '07 USDM STi (or '06-'07 USDM WRX), or '06-'07 EDM EJ257 model. Given the wiring similarities, I'd imagine you could get it to start up...

Been doing a lot of wiring research lately - I'm trying to adapt the GRB MoTeC plug-in M800 to an '06 USDM STi. This ROM is right up the same alley - I'm still just getting up to speed on the software/definition file part of open source tuning.

RomRaider

2009 JDM GRB STi Group N ROM

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