2009 JDM GRB STi Group N ROM

west_minist · **Posted:** Sat Jan 23, 2016 12:36 pm

I guess it could help, but when you look at tuning time and the functions the ems can bring like what true ems like motec, syvecs, life racing and pectel brings, I wouldnt waste time.

But I can sure understand the need to get that up time and race and such rom would be great. The problem is, is getting the rom loaded. I tried this rom on similar years wrx and it wouldnt even bulge.

So I would just rip the ecu belly our and through in a serious ems pnp board like the syvecs or pectel and be off.

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

west_minist wrote:

I guess it could help, but when you look at tuning time and the functions the ems can bring like what true ems like motec, syvecs, life racing and pectel brings, I wouldnt waste time.

But I can sure understand the need to get that up time and race and such rom would be great. The problem is, is getting the rom loaded. I tried this rom on similar years wrx and it wouldnt even bulge.

So I would just rip the ecu belly our and through in a serious ems pnp board like the syvecs or pectel and be off.

Even in this case where I am using a true EMS, the Group N ROM is quite useful for investigating the clever ways that anti-lag and the intercooler wash algorithms were employed by the factory. It is also helpful for someone learning the differences involved in tuning with a restricted, turbocharged engine.

Concerning the autowash and anti-lag, I wanted to replicate the behavior but there are enough threshold variables factored into the GpN routines that the MoTeC unit cannot do this. The ability of the GpN ROM to switch cam control (AVCS) tables under anti-lag conditions are one of a few major differences I've come across. This is all referring to the 16bit GpN ROM, of course - the 08+ ROM is likely similar, but I'm still working through the definitions.

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

One interesting difference between the GD-series GpN ROM and the GR-series ROM is that the target boost table shows a ~800 RPM faster spool on the GR turbo. The only thing I can think of that would account for this is the variable exhaust cam; especially given the turbo on the GD used a ball-bearing CHRA and the GR didn't get this until 2010+. FIA papers confirm the turbo dimensions were the same... The restrictor size may have gone from 32 mm to 33 mm, but I would expect this to cause a slower spool, as well.

Another difference is that the GR ROM compensates target boost for IAT, while the GD did not (that I can tell). Wastegate duties in both cases have IAT compensation. Alone, that's not a huge surprise, but the GR appears to use 25 deg C as the base temperature for target boost IAT compensation rather than something more reasonable (~65 deg C) - in turn, the entire target boost table is off (high) by ~7.8% if taken at face value.

west_minist · **Posted:** Sat Jan 30, 2016 7:34 am

mrsaturn7085 wrote:

Even in this case where I am using a true EMS, the Group N ROM is quite useful for investigating the clever ways that anti-lag and the intercooler wash algorithms were employed by the factory. It is also helpful for someone learning the differences involved in tuning with a restricted, turbocharged engine.

Concerning the autowash and anti-lag, I wanted to replicate the behavior but there are enough threshold variables factored into the GpN routines that the MoTeC unit cannot do this. The ability of the GpN ROM to switch cam control (AVCS) tables under anti-lag conditions are one of a few major differences I've come across. This is all referring to the 16bit GpN ROM, of course - the 08+ ROM is likely similar, but I'm still working through the definitions.

Under the Syvecs, we could deploy that function as the NOS function for the autowash, but in respect to the AVCS, yes no addition cali to switch, which makes me wonder how important it is. When I tuned the AVCS, I practical makes them the same sometimes. But I do see where you are coming from.

With the restrictor, once you know the limiting HP, you will tune to that respect

ckibue · **Posted:** Thu Jul 28, 2016 12:51 am

Been trying and tweaking this rom on a stock JDM 2009 Spec C with no restrictor and I am posting results thus far. Attached is the current tweaked rom and 4th gear wot logs of the same. Working on the boost spike today, but I must say it seems the GrpN AVCS settings give better spool.

There is a snapshot of what I think the SD maf calculation is for reviews and corrections. The log has a superimposed calculation of the same. Logged mass air flow seems to be from the maf sensor, engine load 4-byte from SD calculations. Fuel Temperature is actually Air Charge Temperature.

Added LC logs for SI-Drive Sport and Sport # respectively

Any inputs, feedback most welcome.

aijii · **Joined:** Sun Oct 16, 2011 3:57 am **Posts:** 150

anybody have the FSM for the AZ1G300F ECU ?

I saw the wiring diagram that Marten posted a few pages back.. would love a little more info than that if possible...

chrisro · **Joined:** Sun Jun 03, 2012 8:45 am **Posts:** 7

Hi,
does anybody have Manual for this ecu? I buyed used one, but I don't know how is als activated and how to adjust fuel map sel?

thx
Chris

ckibue · **Posted:** Tue Mar 14, 2017 1:20 pm

Got a 22611ZR000 ecu with a 2008 version of this rom. It runs lean on the so not advisable to use until tables are well defined. Attached is the original copy with a request for definitions. I will upload my IDA dump soon as I have it organized :-)

ckibue · **Posted:** Wed Mar 29, 2017 12:37 pm

ckibue wrote:

Got a 22611ZR000 ecu with a 2008 version of this rom. It runs lean on the so not advisable to use until tables are well defined. Attached is the original copy with a request for definitions. I will upload my IDA dump sson as I have it organized :-)

Initial dump of most tables for viewing in ecuflash.

ckibue · **Posted:** Tue Apr 04, 2017 3:04 am

ckibue wrote:

Got a 22611ZR000 ecu with a 2008 version of this rom. It runs lean on the so not advisable to use until tables are well defined. Attached is the original copy with a request for definitions. I will upload my IDA dump sson as I have it organized :-)

Initial dump of most tables for viewing in ecuflash.

Possible addresses for cross checks;

Code:

Table_Turbo_Dynamics_Integral                       000618FC 
Table_Turbo_Dynamics_Proportional                   00061910 
Table_WGDC_Temp_Compensation_1                      00061924 
Table_WGDC_Temp_Compensation_2                      00061930 
Table_Target_Boost_Compensation_IAT                 0006193C 
Table_WGDC_Atmos_Pressure_Compensation              00061948 
Table_Max_WGDC                                      00061980 
Table_Initial_WGDC                                  0006199C 
Table_Target_Boost                                  000619B8 
Table_Requested_Engine_Torque                       000619EC 
Table_Post_Cranking_Initial_Load_Reference          00061A34 
Table_SD_Base_Load_Compensation_Low_RPM?            00061A80 
Table_SD_Load_Compensation_IAT                      00061AB8 
Table_SD_Final_Load_Limit_A                         00061AD4 
Table_SD_Final_Load_Limit_B                         00061AF0 
Table_SD_Load_Compensation                          00061B0C 
Table_Primary_Open_Loop_2D_Map1                     00062070 
Table_Primary_Open_Loop_Fueling_A                   000626C0 
Table_Primary_Open_Loop_Fueling_B                   000626DC 
Table_Per_Injector_Pulse_Width_Compensation_A       000626F8 
Table_Per_Injector_Pulse_Width_Compensation_B       00062714 
Table_Per_Injector_Pulse_Width_Compensation_C       00062730 
Table_Per_Injector_Pulse_Width_Compensation_D       0006274C 
Table_Injector_Latency_                             00062768 
Table_Base_Timing_Idle_Minimum                      00062828 
Table_Base_Timing_ALS_Minimum                       0006283C 
Table_Base_Ign_Timing_Minimum                       00062864 
Table_Base_Ign_Timing_A                             00062A74 
Table_Base_Ign_Timing_B                             00062A90 
Table_Timing_Compensation_Per_Cylinder_A            00062B70 
Table_Timing_Compensation_Per_Cylinder_B            00062B8C 
Table_Timing_Compensation_Per_Cylinder_C            00062BA8 
Table_Timing_Compensation_Per_Cylinder_D            00062BC4 
Table_Timing_Compensation_Per_Gear_1st              00062BE0 
Table_Timing_Compensation_Per_Gear_2nd              00062BFC 
Table_Timing_Compensation_Per_Gear_3rd              00062C18 
Table_Timing_Compensation_Per_Gear_4th              00062C34 
Table_Timing_Compensation_Per_Gear_5th              00062C50 
Table_DBW_Intel_Mode                                000632EC 
Table_DBW_Sport_Mode                                00063308 
Table_DBW_Sport_Sharp_Mode                          00063324 
Table_Coolant_Temperature_Sensor_Scaling            00063358 
Table_IAT_Sensor_Scaling                            00063364 
Table_Maf_Scaling                                   00063388 
DBW_Intel_Mode_Sub_Main                             000BC192 
CAL_ID                                              000C0000 
Turbo_Dynamics_Integral_Y_Axis                      000C0418 
Turbo_Dynamics_Integral                             000C043C 
Turbo_Dynamics_Proportional_Y_Axis                  000C0450 
Turbo_Dynamics_Proportional                         000C0474 
WGDC_Temp_Compensation_1_Y_Axis                     000C0488 
WGDC_Temp_Compensation_1                            000C04C8 
WGDC_Temp_Compensation_2_Y_Axis                     000C0508 
WGDC_Temp_Compensation_2                            000C0548 
Target_Boost_Compensation_IAT_Y_Axis                000C0588 
Target_Boost_Compensation_IAT                       000C05B4 
WGDC_Atmos_Pressure_Compensation_X_Axis             000C05E0 
WGDC_Atmos_Pressure_Compensation_Y_Axis             000C05F8 
WGDC_Atmos_Pressure_Compensation                    000C0608 
Max_WGDC_X_Axis                                     000C066C 
Max_WGDC_Y_Axis                                     000C0688 
Max_WGDC                                            000C06B4 
Initial_WGDC_X_Axis                                 000C0750 
Initial_WGDC_Y_Axis                                 000C076C 
Initial_WGDC                                        000C0798 
Target_Boost_X_Axis                                 000C0834 
Target_Boost_Y_Axis                                 000C0858 
Target_Boost                                        000C0898 
Requested_Engine_Torque_X_Axis                      000C0B3C 
Requested_Engine_Torque_Y_Axis                      000C0B78 
Requested_Engine_Torque                             000C0BC0 
SD_Base_Load_Constant1                              000C0F58 
SD_Base_Load_Constant2                              000C0F5C 
SD_Load_Compensation_Constant1                      000C0F60 
Post_Cranking_Initial_Load_Reference_Y_Axis         000C10A8 
Post_Cranking_Initial_Load_Reference                000C1164 
SD_Base_Load_Compensation_Low_RPM?_X_Axis           000C125C 
SD_Base_Load_Compensation_Low_RPM?_Y_Axis           000C1288 
SD_Base_Load_Compensation_Low_RPM?                  000C12CC 
SD_Load_Compensation_IAT_X_Axis                     000C1448 
SD_Load_Compensation_IAT_Y_Axis                     000C1488 
SD_Load_Compensation_IAT                            000C1490 
SD_Final_Load_Limit_A_X_Axis                        000C14D0 
SD_Final_Load_Limit_A_Y_Axis                        000C14F8 
SD_Final_Load_Limit_A                               000C1530 
SD_Final_Load_Limit_B_X_Axis                        000C1648 
SD_Final_Load_Limit_B_Y_Axis                        000C1670 
SD_Final_Load_Limit_B                               000C16A8 
SD_Load_Compensation_X_Axis                         000C17C0 
SD_Load_Compensation_Y_Axis                         000C1818 
SD_Load_Compensation                                000C186C 
DBW_Constant1                                       000C253C 
DBW_Constant3                                       000C2540 
DBW_Constant5                                       000C2544 
DBW_Constant2                                       000C2548 
DBW_Constant4                                       000C254C 
DBW_Constant6                                       000C2550 
Injector_Flow_Scaling                               000C4A38 
Rev_Limit_Fuel_Cut_On_RPM                           000C4B38 
Rev_Limit_Fuel_Cut_Off_RPM                          000C4B3C 
Rev_Limit_Fuel_Resume_Boost                         000C4B40 
Primary_Open_Loop_2D_Map1_Y_Axis                    000C4E5C 
Primary_Open_Loop_2D_Map1                           000C4E74 
Primary_Open_Loop_Fueling_A_X_Axis                  000C5EE0 
Primary_Open_Loop_Fueling_A_Y_Axis                  000C5F20 
Primary_Open_Loop_Fueling_A                         000C5F68 
Primary_Open_Loop_Fueling_B_X_Axis                  000C6088 
Primary_Open_Loop_Fueling_B_Y_Axis                  000C60C8 
Primary_Open_Loop_Fueling_B                         000C6110 
Per_Injector_Pulse_Width_Compensation_A_X_Axis      000C6230 
Per_Injector_Pulse_Width_Compensation_A_Y_Axis      000C6270 
Per_Injector_Pulse_Width_Compensation_A             000C62B4 
Per_Injector_Pulse_Width_Compensation_B_X_Axis      000C63C4 
Per_Injector_Pulse_Width_Compensation_B_Y_Axis      000C6404 
Per_Injector_Pulse_Width_Compensation_B             000C6448 
Per_Injector_Pulse_Width_Compensation_C_X_Axis      000C6558 
Per_Injector_Pulse_Width_Compensation_C_Y_Axis      000C6598 
Per_Injector_Pulse_Width_Compensation_C             000C65DC 
Per_Injector_Pulse_Width_Compensation_D_X_Axis      000C66EC 
Per_Injector_Pulse_Width_Compensation_D_Y_Axis      000C672C 
Per_Injector_Pulse_Width_Compensation_D             000C6770 
Injector_Latency__X_Axis                            000C6880 
Injector_Latency__Y_Axis                            000C6894 
Injector_Latency_                                   000C68A0 
Base_Ign_Timing_Constant1                           000C6EAA 
Base_Ign_Timing_Constant2                           000C6F3C 
Timing_Comp_Maximum_RPM_Per_Cylinder                000C6FE0 
Timing_Comp_Minimum_Load_Per_Cylinder               000C6FE4 
Timing_Comp_Minimum_Coolant_Temp_Per_Cylinder       000C6FE8 
Base_Timing_Idle_Minimum_Y_Axis                     000C70C4 
Base_Timing_Idle_Minimum                            000C7179 
Base_Timing_ALS_Minimum_Y_Axis                      000C7184 
Base_Timing_ALS_Minimum                             000C71C4 
Base_Ign_Timing_Minimum_Y_Axis                      000C71E4 
Base_Ign_Timing_Minimum                             000C7224 
Base_Ign_Timing_A_X_Axis                            000C7B58 
Base_Ign_Timing_A_Y_Axis                            000C7B98 
Base_Ign_Timing_A                                   000C7BE0 
Base_Ign_Timing_B_X_Axis                            000C7D00 
Base_Ign_Timing_B_Y_Axis                            000C7D40 
Base_Ign_Timing_B                                   000C7D88 
Timing_Compensation_Per_Cylinder_A_X_Axis           000C8170 
Timing_Compensation_Per_Cylinder_A_Y_Axis           000C81A8 
Timing_Compensation_Per_Cylinder_A                  000C81B8 
Timing_Compensation_Per_Cylinder_B_X_Axis           000C81F0 
Timing_Compensation_Per_Cylinder_B_Y_Axis           000C8228 
Timing_Compensation_Per_Cylinder_B                  000C8238 
Timing_Compensation_Per_Cylinder_C_X_Axis           000C8270 
Timing_Compensation_Per_Cylinder_C_Y_Axis           000C82A8 
Timing_Compensation_Per_Cylinder_C                  000C82B8 
Timing_Compensation_Per_Cylinder_D_X_Axis           000C82F0 
Timing_Compensation_Per_Cylinder_D_Y_Axis           000C8328 
Timing_Compensation_Per_Cylinder_D                  000C8338 
Timing_Compensation_Per_Gear_1st_X_Axis             000C8370 
Timing_Compensation_Per_Gear_1st_Y_Axis             000C8380 
Timing_Compensation_Per_Gear_1st                    000C838C 
Timing_Compensation_Per_Gear_2nd_X_Axis             000C8398 
Timing_Compensation_Per_Gear_2nd_Y_Axis             000C83A8 
Timing_Compensation_Per_Gear_2nd                    000C83B4 
Timing_Compensation_Per_Gear_3rd_X_Axis             000C83C0 
Timing_Compensation_Per_Gear_3rd_Y_Axis             000C83D0 
Timing_Compensation_Per_Gear_3rd                    000C83DC 
Timing_Compensation_Per_Gear_4th_X_Axis             000C83E8 
Timing_Compensation_Per_Gear_4th_Y_Axis             000C83F8 
Timing_Compensation_Per_Gear_4th                    000C8404 
Timing_Compensation_Per_Gear_5th_X_Axis             000C8410 
Timing_Compensation_Per_Gear_5th_Y_Axis             000C8420 
Timing_Compensation_Per_Gear_5th                    000C842C 
Coolant_Temperature_Sensor_Scaling_Y_Axis           000CA12C 
Coolant_Temperature_Sensor_Scaling                  000CA19C 
IAT_Sensor_Scaling_Y_Axis                           000CA20C 
IAT_Sensor_Scaling                                  000CA284 
Maf_Scaling_Y_Axis                                  000CA46C 
Maf_Scaling                                         000CA544 
Ecu_ID_Byte1                                        000CAA00 
Ecu_ID_Byte2                                        000CAA01 
Ecu_ID_Byte3                                        000CAA02 
Ecu_ID_Byte4                                        000CAA03 
Ecu_ID_Byte5                                        000CAA04 
DBW_Intel_Mode_X_Axis                               000DC868 
DBW_Intel_Mode_Y_Axis                               000DC89C 
DBW_Intel_Mode                                      000DC8E4 
DBW_Sport_Mode_X_Axis                               000DCAB8 
DBW_Sport_Mode_Y_Axis                               000DCAEC 
DBW_Sport_Mode                                      000DCB34 
DBW_Sport_Sharp_Mode_X_Axis                         000DCD08 
DBW_Sport_Sharp_Mode_Y_Axis                         000DCD3C 
DBW_Sport_Sharp_Mode                                000DCD84 
E_Target_Boost_4byteExt_E36                         FFFF5E84 
E_Primary_Wastegate_Duty_MaximumExt_4byteExt__E77   FFFF5E94 
E_Manifold_Relative_Sea_Level_Pressure_4byteExt_E52 FFFF60F8 
E_Manifold_Relative_Pressure_4byteExt_E113          FFFF60FC 
E_Throttle_Plate_Opening_Angle_4byteExt_E38         FFFF61C4 
E_Engine_Load_4ByteExt_E32                          FFFF62BC 
E_AF_Sensor_1_4byteExt_E91                          FFFF63D8 
E_Engine_Speed_Delta_E152                           FFFF6474 
E_Final_Fueling_Base_4byte                          FFFF696C 
E_AF_Correction_1_4byteExt_E81                      FFFF6C08 
E_Fuel_Injector_1_Pulse_Width_4byteExt_E60          FFFF6D94 
E_Feedback_Knock_Correction_4byteExt_E39            FFFF7028 

Intercooler Auto Spray on a 09 Spec C works with this rom and it's stock rom, but I can't get it working with the 22611ZR020 rom I posted earlier, on the same ecu hardware.

EDIT
I did some logs today and I reckon the tables at 0x61AD4 and 0x61AF0 are final engine load limits (IAT Vs RPM). I reckon too they were the ones causing the lean AFRs irrespective of VE table changes. I have updated the list above for cross-checks.

ckibue · **Posted:** Tue Apr 18, 2017 9:33 am

Attached is my first IDA dump with some possible tables I have found. Many thanks to the authors of the many and very useful IDA howtos in the forums; opened a whole new learning experience for me :-)

SOd · **Posted:** Tue Apr 18, 2017 10:58 am

throttlehappy wrote:

Jochen_145 wrote:

IF the wireing of EDM WRX STI 2.5 is simular, I got the pinnings and plans...

The 09 GrpN ECU is a direct plug in to the ADM/EDM/JDM 2.5L STi Loom(also for the 09+ STi Spec C AZ1G501K ECU) with some small pin changes though.

Extra wires pinouts for the TMIC washer but that is about it

Please indicate which pins are associated with the washer system in JDM ECU GRB 09+ Spec C AZ1G501K.

And if you can tell me what other differences in the pinout are present. (I know that the brake and cruise signals are not involved)

Many thanks

Jirous · **Posted:** Thu Aug 17, 2017 1:37 pm

OK, we tried this ROM on our racing 2010 STI. But it´s hard to say, what STi we have - It´s an EDM car, but ECU is 22765AB220 - AUDM. Inside of is an Ecutek ROM with ECU ID 5A04786807 and ID inside the ROM on adress 00002000 is LZ1F0000N. Very close to the Group N rom.

The previous owner said, it´s an ECU from a Australian Group N car. So we flashed the Group N ROM. Ignition on - fuel pump runs, but no injector pulse - P1570 - Antenna. BUT - there is no immo in the car. It has got no key - Immo sequence is disabled in the Ecutek ROM. So we must arrange an immobilizer an then we think the car will start and run with the Group N ROM.

Does anybody has an experience with an immo delete ? Sadly we don´t know on what adress in the HEX file is the Immo sequence, so immo disable is impossible for us.

Petr, HAJSEL MOTORSPORT, Czech Republic

ckibue · **Posted:** Wed Jan 30, 2019 9:38 am

Been running this on my car after several map tweaks and so far so good. My latest IDA dump is attached below. Trying to get to figure out the following;

Pointers will be appreciated.

Calin · **Joined:** Mon May 16, 2011 12:39 pm **Posts:** 15

Hi everyone!
I have followed this thread for the last months. A friend of mine recently purchased a group N rally car with the AZ1F000F rom. He turned to me to help him re-tune his car without restrictor, but the definition posted only gives me a few maps that I can play with. I see that there is a lot of information on this rom, but I am not able to use it to compile a useful definition file. If you can help me with an updated version of the definition I would be very grateful!
Cheers!
EDIT:
I have attached a picture of the ECU.

RomRaider

2009 JDM GRB STi Group N ROM

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