openecu.org

by **west_minist** » Wed Dec 07, 2005 5:53 am

I have the room, but enginuity didn't open it.

I will see what excel can do.

by **west_minist** » Wed Dec 07, 2005 7:39 am

How did you view or know which parameter is for what?

by **Spiider** » Wed Dec 07, 2005 6:27 pm

Colby's HC16 IDA flirt sig helped a lot. Plus, the Motorola specs and language reference posted here, and some electrical schematics.

Extensive testing, and a good knowledge of certain hex editors.

2A640-2A665 = VVT INTAKE CAM ADVANCE ANGLE RPM SETTINGS (VERTICAL)
2A667-2A682 = VVT INTAKE CAM ADVANCE ANGLE THROTTLE SETTINGS (HORIZONTAL)
2A685-2A79C = VVT INTAKE CAM ADVANCE ANGLE DATA VALUES

This is only for the ah581 rom. (2003 "ver8" JDM STi Twin Scroll)

by **west_minist** » Wed Dec 07, 2005 6:53 pm

You are getting me excited!!!

by **west_minist** » Wed Dec 21, 2005 6:59 pm

I got my wideband installed in the car and have partial tune the car. A lot more responsive now. I have a HKS AFR.

What I realise that below 4Krpm (close loop) and below 1/2 throttle, the car is @ 14.7 or slightly less. Damn.

The only way that I can correct is problem is a reflash.

Colby, how is the JECS editing coming along?

by **cboles** » Wed Dec 21, 2005 7:17 pm

I just got a JECS ECU in the mail the other day - hopefully I can get the reflash figured out for it soon!

by **west_minist** » Wed Dec 21, 2005 7:26 pm

Thats great!

I just cannot believe the afr in that range.

Once download, then we can see what other tools out there to view those maps.

Either way, good news.

by **west_minist** » Sun Dec 25, 2005 1:07 pm

I opened up my JDM MY00 2.0L AVCS Impreza non-turbo Unisia JECS ecu today.

UNISIA JECS CORPORATION
A5
22611 AE463
A18-000 D3G 0524

On the broad:-
A19-001 D52N

The large chip w/ many legs, which have to be the ecu is not a motorola

UJ
WA12212920WWW
016E100

All other chips were NEC. But the processor chip had no motorola on it at all.

Colby, I do not know if this would help, but can you post a pic of the JECS you have?

by **Hitokiri** » Sun Dec 25, 2005 9:27 pm

the ECU he has is a USDM MY00 2.5RS ecu and has the same

"uj" chip I know exactly what you are talking about.

the protocol he developes will hopefully work accross these ecus.

by **NoCtrl** » Mon Dec 26, 2005 3:59 am

Hi,
So my99 and my00 ECU's all look like these: :?:

ECU-my99-TYPE_R_WRX

ECU-Forester-S-Turbo-99 big picture

The Forester-ECU is from my car, the picture of the WRX-ECU was lifted from ebay..

Guess its time to get a Interface and look around for a spare ECU to fool around with

by **west_minist** » Mon Dec 26, 2005 5:44 am

Yep. Thats correct. All of them look the same. The socket from the right is not use and most probably follow this diagram:-

by **NoCtrl** » Mon Dec 26, 2005 9:02 am

west_minist wrote:Yep. Thats correct. All of them look the same. The socket from the right is not use and most probably follow this diagram:-

Nice!

Thank you.

by **west_minist** » Mon Dec 26, 2005 9:06 am

I just need to add the AVCS controls now.

But there was a new ecu that came out for the same engine in 2000. Most probably when acquisitions were going on w/ Unisia JECS Corp.

Where is the rom store? In the chip below the microprocessor?

by **Spiider** » Mon Dec 26, 2005 4:02 pm

If you are talking about the Rom that we access, it is internal to the micoprocessor.

by **west_minist** » Mon Dec 26, 2005 6:24 pm

Ok.

I wonder how Cboles is coming along w/ the JECS.

Any word from him on this?

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