ECM Technical Information and Tuning Capabilities

[blueroadster]

Originally Posted by jsb03f

regarding the CAN values for 06-08 civics. Are the ECM's interchangeable?

The ECM for the 06, 07, and 08 each have different part numbers. In addition, when comparing the code loaded on the 06 and 07 ECM, there is a noticable difference. The 07 ECM software also added code to support the traction control system and tire pressure monitoring system. The TPMS is not used on the 07 but was activated on the 08 models. I am not sure if the code differences between the 07-08 models was as extensive as the 06-07 models.

[vtecmike1]

so in theory since the jdm ecu doesnt use the coded software like ours its more promising to crack that then our ecu and once they do crack it it could be re base lined to run 06 07 and 08 cars and run the kpro type set up?

[blueroadster]

Bingo!

[vtecmike1]

this is most promising news.

IF and i mean IF there is no coded software and its all open based programming like the older rsx ecus then hondata should just give up on our USDM ecu's all together.
with the knowledge they know of the previous K series ecus a non coded jdm ecu should take no longer then a few months to crack or even less. then its import jdm ecus by the
CRATE LOADS and time to open up the can of worms on the 8th gen.

[MJ23FE]

Originally Posted by darkrom

Somebody wasn't doing their reading/research!


The problem IS the MAF actually. You should look at one of the 1000000 threads on how we need Kpro and why we can't have it. Or you could bug Doug at Hondata.

Touche. Whatever sensor the RSX uses is what I meant to say. Blah! Sorry guys.

[blueroadster]

Originally Posted by vtecmike1

this is most promising news.

IF and i mean IF there is no coded software and its all open based programming like the older rsx ecus then hondata should just give up on our USDM ecu's all together.
with the knowledge they know of the previous K series ecus a non coded jdm ecu should take no longer then a few months to crack or even less. then its import jdm ecus by the
CRATE LOADS and time to open up the can of worms on the 8th gen.

You have a point, but Hondata has also stated an interest in the past with respect to protecting their intellectual property. As a result, I would imagine that they would introduce some more code to protect what they do so it would not be open source. They would also need to locate a supplier of the ECMs to keep up with demands.

[vtecmike1]

no doubt. if there putting in the grind work they should protect it.
what i was getting at is the jdm ecu will offer them the option to freely crack the system. put a kpro on it and code it back up to protect tampering with relative ease.
especially compared to our ecu which is locked up tighter then a catholic nuns panties.

i think all of us just want a solution at this point and it should take them no time at all to get one moving forward if they ditch the usdm ecus all together and go with the jdm platform.

if of course all this turns out to be true and the jdm ecus indeed have no cipher code.

[Zeuceone]

Hi Hondata...

[Zeuceone]

Care to chime in on our conversation.?

[lukits01]

Quick question guys, for ECU gurus

how does:

Grey Connector Pin 34 GRN/YEL
VTS (ROCKER ARM OIL CONTROL SOLENOID)
Drives rocker arm oil control solenoid

interact with

Green Connector pin 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

and

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

thanks in advance

[Barry]

Well the one problem that sticks out in my mind with the jdm ecu is that vin's are stored on usdm ecu's so when you go to get inspected you would need to swap back which isn't a big deal but still. Unless honda's are different than subarus.

Also the other thing i may be confused about is the cypher is what is holding everything back and is proving hard to crack however no one is saying its impossible correct? I mean sounds to me like we all need to be contacting some nice young people at mit to figure this out for us.

[MJ23FE]

If I missed this, I apologize, but will the programmable ECU that Hondata releases be able to control DBW so that the lag can be eliminated? Again, I'm sorry if this has been covered.

-Jalal

[2RotorMotor]

they dont need to crack anything.. they have been tuning it since the car first came out..

[FBFG]

Is it possible to the Hondata Reflash and have the reflash for the Comptech Supercharger at the same time?Or would the S/C overwrite the Hondata relash once it is installed?

[DavisLasVegas]

Originally Posted by lukits01

Quick question guys, for ECU gurus

how does:

Grey Connector Pin 34 GRN/YEL
VTS (ROCKER ARM OIL CONTROL SOLENOID)
Drives rocker arm oil control solenoid

interact with

Green Connector pin 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

and

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

thanks in advance

i can check the service manual and all data and see what i can come up with

[soxfan143]

I hate to inform you guys but the JDM Type R does NOT use a MAF sensor. I have been trying to adapt the Mugen air box from the Type R to my SI and it won't work because it doesn't have a MAF sensor. Samco is developing a special intake tube to adapt the MAF sensor into the Mugen airbox. So the theory about the type R ECU working on our cars is not possible. Unless it's capable of running a MAF sensor also. But I doubt it.