ECM Technical Information and Tuning Capabilities

[blueroadster]

Background:

This thread is related to tuning the Engine Control Module (ECM) on the 2006 and newer Honda Civic. It is being created as a means to share technical information to result in a programmable engine management solution. The project began as a hobby several months ago where quite a bit of progress has already been made. The work is being done on a voluntary basis where any information or assistance will be greatly appreciated. This first post will be updated over time to document progress and to provide credit to those that have contributed. Consider it similar to a wiki and feel free to reference a specific section (or suggest a new one) that requires updating.

Contributors:

blueroadser
Highrev1
DetachmentBravo

ECM: General Information (contributors: blueroadster):

Information to be added related to the ECM, implementation of CAN, etc.

The PCB is produced and the ECM is assembled at Keihin Carolina Systems Technology, Inc. in Tarboro, NC. The Honda part number for the ECM is 37820-RRB-A05. If you order a replacement, it should arrive in an anti-static bag as follows:



ECM: External Structure and Communications (contributors: blueroadster, Highrev1):

The ECM has three external harness connections referenced as being A (White), B (Grey), and C (Green) respectively. They are shown in the following image (Connector A (White) goes on the left, Connector B (Grey) in the middle, and Connector C (Green) to the right):



Here is a PIC of the back side of the ECM:



The connectors are produced by the Tyco Electronics Corporation and are represented in the following image.



The Tyco part numbers are as follows (the specific items can be located on their site via a part number search with click through links to distributors):

Connector A (White) 44 Position Plug Assembly (Female): 1717138-6
Connector A (White) 44 Position Wire Cover: 1827108-1
Connector B (Grey) 44 Position Plug Assembly (Female): 1717138-5
Connector B (Grey) 44 Position Wire Cover: 1827109-1
Connector C (Green) 44 Position Plug Assembly (Female): 1717138-4
Connector C (Green) 44 Position Wire Cover: 1674419-2
Cavity Plug: 1612108-4
Wire Cover V Type: 1746089-1
132 Position Cap Assembly (Male) (Part of the ECM assembly): 1717139-1
44 Position Wire Cover Type-IV: 1903287-1

The pinouts and details for each connector are as follows:

Connector A (White):



NOTE: Standard battery voltage is about 12 V.

Terminal number
Wire color
Terminal name
Description
Signal

4
BLU (2006), PUR (2007)
FANL (RADIATOR FAN CONTROL)
Drives radiator fan relay (J)
With radiator fan running: about 0 V / With radiator fan stopped: battery voltage

5
GRY
FANH (RADIATOR FAN CONTROL)
Drives A/C condenser fan relay (K)
With A/C condenser fan running: about 0 V / With A/C condenser fan stopped: battery voltage

6
GRN
MRLY (PGM-FI MAIN RELAY 1 C)
Drives PGM-FI main relay 1 C / Power source for DTC memory
With ignition switch ON (II): about 0 V / With ignition switch OFF: battery voltage

8
ORN
IGP (POWER SOURCE)
Power source for ECM circuit
With ignition switch ON (II): battery voltage

9
BLK
SG6 (SENSOR GROUND)
Sensor ground
Less than 1.0 V at all times

10
LT GRN
VSV (EVAPORATIVE EMISSION (EVAP) CANISTER VENT SHUT VALVE)
Drives EVAP canister vent shut valve
With ignition switch ON (II): battery voltage

14
RED
ACC (A/C COMPRESSOR CLUTCH RELAY (A))
Drives A/C compressor clutch relay (A)
With compressor ON: about 0 V / With compressor OFF: battery voltage

15
BRN
IMOFPR (IMMOBILIZER FUEL PUMP RELAY)
Drives PGM-FI main relay 2 (FUEL PUMP)
About 0 V for 2 seconds after turning ignition switch ON (II), then battery voltage

16
LT GRN
ACPD (A/C PRESSURE SENSOR)
Detects A/C pressure sensor signal
With A/C switch ON: about 1.7-4.8 V (depending on A/C pressure)

17
YEL
APSA (ACCELERATOR PEDAL POSITION (APP) SENSOR A)
Detects APP sensor A signal
With ignition switch ON (II) and accelerator pedal pressed: about 4.7 V / With ignition switch ON (II) and accelerator pedal released: about 0.5 V

18
PUR
APSB (ACCELERATOR PEDAL POSITION (APP) SENSOR B)
Detects APP sensor B signal
With ignition switch ON (II) and accelerator pedal pressed: about 2.3 V / With ignition switch ON (II) and accelerator pedal released: about 0.25 V

19
RED
VCC6 (SENSOR VOLTAGE)
Provides sensor reference voltage
With ignition switch ON (II): about 5.0 V

20
YEL
ETCSRLY (ELECTRONIC THROTTLE CONTROL SYSTEM (ETCS) CONTROL RELAY (F))
Drives electronic throttle control system (ETCS) control relay (F)
With ignition switch ON (II): about 0 V (4.0 V momentarily)

21
LT BLU (2006) PNK (2007)
SUBRLY (PGM-FI SUBRELAY (E))
Drives PGM-FI subrelay (E)
With ignition switch ON (II): about 0 V

23
ORN
ELD (ELECTRICAL LOAD DETECTOR (ELD))
Detects ELD signal
With ignition switch ON (II): about 0.1-4.8 V (depending on electrical load)

24
GRY
VCC5 (SENSOR VOLTAGE)
Provides sensor reference voltage
With ignition switch ON (II): about 5.0 V

25
BRN
VCC4 (SENSOR VOLTAGE)
Provides sensor reference voltage
With ignition switch ON (II): about 5.0 V

26
WHT (2006) LT GRN (2007)
FTP (FUEL TANK PRESSURE (FTP) SENSOR)
Detects FTP sensor signal
With ignition switch ON (II) and fuel fill cap removed: about 2.5 V

27
GRN
RVS (REVERSE LOCK SOLENOID VALVE)
Drives reverse lockout solenoid valve
With vehicle speed below 9.4 mph (15 km/h): battery voltage / With vehicle speed above 12.5 mph (20 km/h): about 0 V

28
BLU
NEP (ENGINE SPEED PULSE)
Outputs engine speed pulse
With engine running: pulses

29
BLU
VSSOUT (VEHICLE SPEED SIGNAL OUTPUT)
Sends vehicle speed signal
Depending on vehicle speed: pulses

31
BRN
SCS (SERVICE CHECK SIGNAL)
Detects service check signal
With service check signal shorted using the HDS: about 0 V / With service check signal opened: about 5.0 V

33
GRN
ECT2 (ENGINE COOLANT TEMPERATURE (ECT) SENSOR 2)
Detects ECT sensor 2 signal
With ignition switch ON (II): about 0.1-4.8 V (depending on engine coolant temperature)

34
LT BLU
SG5 (SENSOR GROUND)
Sensor ground
Less than 1.0 V at all times

35
BLU
SG4 (SENSOR GROUND)
Sensor ground
Less than 1.0 V at all times

36
WHT
CANH (CAN COMMUNICATION SIGNAL HIGH)
Sends communication signal
With ignition switch ON (II): about 2.5 V (pulse)

37
RED
CANL (CAN COMMUNICATION SIGNAL LOW)
Sends communication signal
With ignition switch ON (II): about 2.5 V (pulse)

39
BRN
BKSWNC (BRAKE PEDAL POSITION SWITCH)
Detects brake pedal position switch signal
With ignition switch ON (II) and brake pedal released: battery voltage / With ignition switch ON (II) and brake pedal pressed: about 0 V

40
LT GRN
BKSW (BRAKE PEDAL POSITION SWITCH)
Detects brake pedal position switch signal
With brake pedal released: about 0 V / With brake pedal pressed: battery voltage

41
LT BLU
CRMTCLS (CRUISE CLUTCH PEDAL POSITION SIGNAL)
Detects clutch pedal position switch signal
With ignition switch ON (II) and clutch pedal released: about 0 V / With ignition switch ON (II) and clutch pedal pressed: battery voltage

42
RED
WEN (WRITE ENABLE SIGNAL)
Detects write enable signal
With ignition switch ON (II): about 0 V

44
PNK
S-NET5V (SERIAL COMMUNICATION FOR IMMOBILIZER)
Sends serial communication signal
With ignition switch ON (II): pulses / With ignition switch OFF: about 5.0 V

Connector B (Grey):



Terminal number
Wire color
Terminal name
Description
Signal

1
BLK/RED (2006) BLK (2007)
PG2 (POWER GROUND)
Ground circuit for ECM circuit
Less than 1.0 V at all times

3
YEL/BLU
PCS (EVAPORATIVE EMISSION (EVAP) CANISTER PURGE VALVE)
Drives EVAP canister purge valve
With engine running, engine coolant below 140 ºF (60 ºC): battery voltage / With engine running, engine coolant above 140 ºF (60 ºC): duty controlled

4
BLK/WHT
SO2SHTC (SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) HEATER (SENSOR 2))
Drives secondary HO2S heater (sensor 2)
With ignition switch ON (II): battery voltage / With fully warmed up engine running: duty controlled

7
YEL/RED
OPSW (OIL PRESSURE SWITCH)
Detects engine oil pressure signal
With ignition switch OFF: about 0 V / With engine running: battery voltage

18
YEL/BLU
VCC2 (SENSOR VOLTAGE)
Provides sensor voltage
With ignition switch ON (II): about 5.0 V

23
RED/WHT
ECT1 (ENGINE COOLANT TEMPERATURE (ECT) SENSOR 1)
Detects ECT sensor 1 signal
With ignition switch ON (II): about 0.1-4.8 V (depending on engine coolant temperature)

30
RED/BLK
VG+ (MASS AIR FLOW (MAF) SENSOR +SIDE)
Detects MAF sensor signal
At idle: 1.1-1.6 V (between VG+ terminal and VG- terminal)

31
RED/YEL
IAT (INTAKE AIR TEMPERATURE (IAT) SENSOR)
Detects IAT sensor signal
With ignition switch ON (II): about 0.1-4.0 V (about 1.8 V at normal operating temperature)

32
BLK/RED
VG- (MASS AIR FLOW (MAF) SENSOR -SIDE)
Ground for MAF sensor signal

33
GRN/BLK
SG2 (SENSOR GROUND)
Sensor ground
Less than 1.0 V at all times

34
GRN/YEL
VTS (ROCKER ARM OIL CONTROL SOLENOID)
Drives rocker arm oil control solenoid
At idle: about 0 V

36
BLK
PG1 (POWER GROUND)
Ground circuit for ECM circuit
Less than 1.0 V at all times

41
WHT/GRN
ALTC (ALTERNATOR CONTROL)
Sends alternator control signal
With fully warmed up engine running: 5.0 V (depending on electrical load)

42
WHT/BLU
ALTL (ALTERNATOR L SIGNAL)
Detects alternator L signal
With ignition switch ON (II): about 0 V / With engine running: battery voltage

43
WHT/RED
ALTF (ALTERNATOR FR SIGNAL)
Detects alternator FR signal
With engine running: about 2.6-3.4 V (depending on electrical load)

Connector C (Green):



Terminal number
Wire color
Terminal name
Description
Signal

1
WHT
IG1ETCS (IGNITION SIGNAL ETCS)
Detects ignition signal
With ignition switch ON (II): battery voltage

2
BLK
PGMETCS (POWER GROUND ETCS)
Ground circuit for ECM circuit
Less than 1.0 V at all times

3
GRN/YEL
ETCSM- (THROTTLE ACTUATOR -SIDE)
Ground for throttle actuator
With ignition switch ON (II): about 0 V

4
BLU/RED
ETCSM+ (THROTTLE ACTUATOR +SIDE)
Drives throttle actuator
With ignition switch ON (II): about 0 V

5
BRN
INJ1 (No. 1 INJECTOR)
Drives No. 1 injector
At idle: duty controlled / With ignition switch ON (II): battery voltage

6
RED
INJ2 (No. 2 INJECTOR)
Drives No. 2 injector
At idle: duty controlled / With ignition switch ON (II): battery voltage

7
BLU
INJ3 (No. 3 INJECTOR)
Drives No. 3 injector
At idle: duty controlled / With ignition switch ON (II): battery voltage

8
YEL
INJ4 (No. 4 INJECTOR)
Drives No. 4 injector
At idle: duty controlled / With ignition switch ON (II): battery voltage

9
WHT/GRN
AFSHTC (AIR FUEL RATIO (A/F) SENSOR HEATER CONTROL (SENSOR 1))
Drives A/F sensor heater (sensor 1)
With ignition switch ON (II): battery voltage / With fully warmed up engine running: about 0 V

11
GRN/RED
MAP (MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR)
Detects MAP sensor signal
With ignition switch ON (II): about 3.0 V / At idle: about 1.0 V (depending on engine speed)

12
BLU
VCC3 (SENSOR VOLTAGE)
Provides sensor reference voltage
With ignition switch ON (II): about 5.0 V

13
YEL/RED
VCC1 (SENSOR refens VOLTAGE)
Provides sensor reference voltage
With ignition switch ON (II): about 5.0 V

14
GRN/WHT
SG1 (SENSOR GROUND)
Sensor ground
Less than 1.0 V at all times

15
YEL/GRN
IGPLS1 (No. 1 IGNITION COIL PULSE)
Drives No. 1 ignition coil
With ignition switch ON (II): about 0 V / With engine running: pulses

16
BLU/RED
IGPLS2 (No. 2 IGNITION COIL PULSE)
Drives No. 2 ignition coil
With ignition switch ON (II): about 0 V / With engine running: pulses

17
WHT/BLU
IGPLS3 (No. 3 IGNITION COIL PULSE)
Drives No. 3 ignition coil
With ignition switch ON (II): about 0 V / With engine running: pulses

18
BRN
IGPLS4 (No. 4 IGNITION COIL PULSE)
Drives No. 4 ignition coil
With ignition switch ON (II): about 0 V / With engine running: pulses

20
RED/BLK
TPSA (THROTTLE POSITION (TP) SENSOR A)
Detects TP sensor A signal
With throttle fully open: about 3.9 V / With throttle fully closed: about 0.9 V

21
RED/BLU
TPSB (THROTTLE POSITION (TP) SENSOR B)
Detects TP sensor B signal
With throttle fully open: about 4.1 V / With throttle fully closed: about 1.7 V

22
BLU/BLK
VTPSW (ROCKER ARM OIL PRESSURE SWITCH)
Detects rocker arm oil pressure switch signal
With engine at low speed: about 0 V / With engine at high speed: battery voltage

23
BLU/WHT
VTC (VTC OIL CONTROL SOLENOID VALVE)
Drives VTC oil control solenoid valve
With ignition switch ON (II): about 0 V

27
WHT/RED
SHO2S (SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) (SENSOR 2)
Detects secondary HO2S (sensor 2) signal
With throttle fully opened at idle and fully warmed up engine: about 0.6 V / With throttle quickly closed: below 0.4 V

29
RED
AFS+ (AIR FUEL RATIO (A/F) SENSOR (SENSOR 1) +SIDE)
Detects A/F sensor (sensor 1) signal

30
RED/YEL
AFS- (AIR FUEL RATIO (A/F) SENSOR (SENSOR 1) -SIDE)
Detects A/F sensor (sensor 1) signal

31
GRN
CMP B (CAMSHAFT POSITION (CMP) SENSOR B)
Detects CMP sensor B signal
With engine running: pulses

32
BLU/YEL
CKP (CRANKSHAFT POSITION (CKP) SENSOR)
Detects CKP sensor signal
With engine running: pulses

36
BLK/RED
IG1 (IGNITION SIGNAL)
Detects ignition signal
With ignition switch ON (II): battery voltage

39
GRN
SG3 (SENSOR GROUND)
Sensor ground
Less than 1.0 V at all times

40
BRN/YEL
LG1 (LOGIC GROUND)
Ground circuit for ECM circuit
Less than 1.0 V at all times

41
BLU/WHT
CMP A (CAMSHAFT POSITION (CMP) SENSOR A)
Detects CMP sensor A signal
With engine running: pulses

42
RED/BLU
KS (KNOCK SENSOR)
Detects knock sensor signal
With engine knocking: pulses

43
BLK/WHT
NC (OUTPUT SHAFT (COUNTERSHAFT) SPEED SENSOR)
Detects output shaft (countershaft) speed sensor signals
With ignition switch ON (II): pulses / With vehicle moving: about 5.0 V (pulses)

44
BRN/YEL
LG2 (LOGIC GROUND)
Ground circuit for ECM circuit
Less than 1.0 V at all times

ECM: Internal Structure and Communications (contributors: blueroadster):

The ECM is sealed closed with four phillips head screws as well as a permatex type sealant all around in a channel in order to prevent external elements from coming into contact with the PCB itself. There is really no way of removing the two sides of the ECM casing without causing some form of damage. The following PIC shows part of the external casing that was broken to help remove the two sides:



The casing itself is sealed as secure as Fort Knox. As a result, I needed to remove the outside edge all the way around the ECM in order to pry the back cover off without damaging the PCB. Here is a PIC of the rear cover after removal:



Here is a PIC of one side of the PCB after the rear cover was removed:



Click here for a high resolution PIC of the rear side of the PCB.

Click here and here for high resolution PICs of the front of the PCB.



Here are some of the chips used on the PCB as referenced in the above image. The chip of interest is the Renesas Microprocessor.

MC33886VW (Motorola Monolithic H-Bridge)

SPF5018 (Sanken High-side Power Switch IC)

64F7058F80V Renesas SuperH 32-bit RISC Microprocessor (Renesas Part Number HD64F7058F). Here is a link for the SH7058F Group Microcomputer On-Board Programming Guide. There are a ton of other documents and tools available when searching the "Application Notes" and "Documentation" sections for the SH7058 on the Renesas website.

The PCB is produced and the ECM is assembled at Keihin Carolina Systems Technology, Inc. in Tarboro, NC. Unfortunately, they do not have any technical publications available on the areas of their website viewable to the public.

ECM: Factory Programming Data (contributors: blueroadster):

Once the HDS software is installed on a PC, the factory programming for Honda and Acura models can be located within the directory structure (the files end with a .rwd extension). These files are specific to a given vehicle and are all less than 1MB in size. The factory programming code is transferred from the PC to the HIM when the HIM is initialized. Once initialized, the HIM can then be used to communicate with the vehicle through the vehicle's diagnostic connector. At this point, the rewrite application of the HDS can be started on the PC. The HDS communicates through the HIM to check the stored ECM flash memory data. It then compares this data to the corresponding .rwd file. If there is an updated .rwd available, then it can be loaded onto the vehicle's ECM. If there is not an updated .rwd file, then the HDS will report that the programming is current and therefore will not initiate the transfer process.

Software structure information might be added.

ECM: Operation: Open Verses Closed Loop:

Information to be added.

Dealer Tools: Honda Interface Module (HIM) General Information (contributors: blueroadster):

The HIM is manufactured by Teradyne. An HIM with a CAN daughter card or a GNA600 (replaced the HIM and has a few less functional capabilities) is required for the device to communicate with the 2006+ Honda Civic. You can order the GNA600 from Helm or purchase the GNA600 directly from the manufacturer without having to be a service express member (you do however, need to be a service express subscriber in order to order the HDS though).

Picture of the HIM (external):



Picture of the HIM (internal, showing the CAN daughter card installed):



Dealer Tools: Honda Diagnostic Software (HDS) General Information (contributors: blueroadster):

You have to order the HDS from this link. You must also be a current service express member in order to qualify for purchasing.

Communications with the vehicle's onboard systems can be established when the HDS is used with an approved hardware device (ex., HIM or GNA600). Once communications have been established with the vehicle, the HDS can report and datalog the following real time data:

ENGINE SPEED
VSS
ECT SENSOR 1
ECT SENSOR 2
IAT SENSOR 2
MAP SENSOR
MAF SENSOR
CLV
TP SENSOR
REL TP SENSOR
APP SENSOR
APP SENSOR A
APP SENSOR B
TARGET TH VLV
IDLE TARGET TH
TP SENSOR A
TP SENSOR B
MOTOR DUTY
CRUS REQ TH
TACH RELAY
THROTTLE ACTUATOR SUPPLY VOLTAGE
AF SENSOR
AF LAMBDA
AF FB (ST FUEL TRIM)
AF FB AVE (LT FUEL TRIM)
FSS
H02S (AF) S1 HEATER
IDLING
FUEL CUT
FUEL CUT DECEL
BATTERY
IG1 LEVEL
ELD
ALTERNATOR
ALT CTRL
GEAR POSITION
C SHAFT SPD
REVERSE LOCK SOL
BRAKE SWITCH
A/C SWITCH
A/C PRESSURE SENSOR
A/C CLUTCH
SCS
OIL PRESSURE SWITCH
VTEC PRES SW
VTEC SOL
SELENOID RETURN SIGNAL
F INJECTOR
SPARK ADVANCE
VTC STATUS
CMP CTRL
CMP CTRL CMD
VTC SOL DUTY
KNOCK RETARD
KNOCK SENSOR
KNOCK CTRL
FUEL LEVEL (AVERAGE)
FUEL LEVEL
EVAP CVS VALUE
RE CVS VALUE
MIL
MIL STATUS
MIL DIST
MAIN RELAY (FP)
FAN HIGH CTRL
FAN LOW CTRL
ENGINE OIL LIFE
IDLE LEARN
CKP PULSER F/B LEARN
MAX ENG SPD
OVER ENF TM
START ECT
START IAT
CAT MONITOR CONDITION B1
MISFIRE
MISFIRED CYL
CYL1 MISFIRE_B
CYL1 MISFIRE
CYL2 MISFIRE_B
CYL2 MISFIRE
CYL3 MISFIRE_B
CYL3 MISFIRE
CYL4 MISFIRE_B
CYL4 MISFIRE
MISFIRE CYCLE
SHIFT/CLUTCH SW
MISFIRE CYCLE_B
CMP A NO PULSE
CMP B NO PULSE
CKP NO PULSE
CMP A NOISE
CMP B NOISE
CKP NOISE
CRUISE BRAKE SW
CRUISE MASTER (MAIN) SW
CRUISE SET SW
CRUISE RESUME SW
CRUISE CANCEL SW
CRUISE INDICATOR

Readiness codes (either Complete (could also mean not applicable) or Not Complete) include the following:

CATALYST
Heated Catalyst
EVAP
Secondary Air
A/C system refrigerant
O2 Sensor
O2 Sensor Heater
EGR

The readiness codes are set over time when the vehicle is running. If the tests have not been completed and there is an error, it will result in the check engine light flashing five times after turning the ignition switch to the ON (II) position.

Dealer Tools: J2534 Reprogramming Software General Information (contributors: blueroadster, HighRev1):

General Information: SAE J2534-1 Reflashing Applications

Servicing newer, more increasingly complicated vehicles has put independent repair shops at a disadvantage against auto dealerships that have access to the latest service tools and knowledge databases. Accurately diagnosing and repairing many of these newer vehicles used to require full access to expensive factory service tools. The EPA recognized the independent repair shop’s need for access and mandated that all OEMs comply with the SAE J2534-1 standard. The SAE J2534-1 standard defines a uniform hardware device, that all automakers must support with their vehicle reflashing applications. Each manufacture must provide compatible software to allow for the ECM to be updated via an SAE J2534-1 compliant hardware device. The following image shows the device connectivity layout:



Honda's SAE J2534-1 Application:

Honda offers two ECM programming options with the software that they have available. Namely the HDS and SAE J2534-1 software applications available through Helm. The SAE J2534-1 software application is in reality just a subset of the functionality already included with the HDS software. Honda had to release the SAE J2534-1 programming software as required by law however, the software itself does not allow for the ability to modify emissions related parameters stored in the ECM as discussed in the SAE J2534-1 standard. Instead, the software only offers the ability to load a completely new version of the ECM programming only if the existing one is not current.

[Highrev1]

RESERVED FOR ERIC!!

[Highrev1]

delete

[Caper]

Kudos to both of you guys for helping in the search for engine management/tuning capabilities that everyone desires! +REP!

[blueroadster]

Originally Posted by Caper

Kudos to both of you guys for helping in the search for engine management/tuning capabilities that everyone desires! +REP!

Thanks...As if you couldn't tell, I really want a good tuning solution and am trying whatever that can be done to help make that happen in the near term. I've been working with another member on this forum for the last several months, but will refrain from posting any details as I am hoping that the individual will join in and share what they have.

[marc-o-lishuz]

Now I know what a voided warranty looks like. Well-deserved rep!

[Highrev1]

For the J2534 standard is this like somthing you want for it ERIC?? Or do you want a more detailed acccount of exactly what it is and what it does?There are two good sections here One that is information and one that is just those 3 questions..:)

OEM J2534 Reflashing Applications
Servicing newer, more increasingly complicated vehicles has put independent repair shops at a disadvantage against auto dealerships that have access to the latest service tools and knowledge databases. Accurately diagnosing and repairing many of these newer vehicles used to require full access to expensive factory service tools. The EPA recognized the independent repair shop’s need for access and mandated that all OEMs comply with the SAE standard J2534-1. The SAE J2534-1 standard defines a uniform hardware device, that all automakers must support with their vehicle reflashing applications.

[blueroadster]

Please delete.

[CaliGuy]

Awesome info! I would rep you both, but I can't...

[blueroadster]

Please delete.

[y2kedar]

Man...I see great stuff happening here. Mkaing some progress on our own would really spark fire under hondatas ass to release a tunable solution. Props to blueroadster and hirev1 for sharing the knowledge.

[blueroadster]

Originally Posted by y2kedar

Man...I see great stuff happening here. Mkaing some progress on our own would really spark fire under hondatas ass to release a tunable solution. Props to blueroadster and hirev1 for sharing the knowledge.

Thanks...The intent of this thread is to share information in an effort to help the tuners out there offer up a solution for our platform. Between me and the other person that I have been working with, we could eventually design a solution, but that would take a while unless we could get some more help. We have however, recently been offered help from a valuable source and are hoping that it works out.

*edit* Just realized that if someone gives +rep and then the post is later deleted, you loose the +rep that you were given by another member. Rep does not really matter to me, but I thought that I would point out the issue in case it was not known. */edit*

[NA06Si]

Very interesting and informative stuff here. Wish I had something to offer or completely understood all the information you have provided. Threads like this make up for all the "I'm gonna have 500 N/A HP by the end of the week!" and "So what is the best sounding exhaust?" threads that litter this site. Thanks for sharing.

[el_ben2]

great!
+rep
also... this is the same for r18 and k20z3 engines right?
i mean the wiring etc etc
i need this kind of info cus im gonna install the e-MU or the FCON-iS
and need all the possible info about our ECU and wiring

[blueroadster]

ECM pinouts are the same. If you need all of the wiring information, then I would suggest that you purchase an electrical manual since there are differences for other connectors and wiring on the car (ex., the R18 does not have EPS so it does not have that control module).

[y2kedar]

So...any progress yet?