Project: ECU Database

[carotman]

I noticed that there are four 20X16 tables beggining at adress 5900h
There are two 11X17 tables at 5DF5h
There are two 20X4 tables at 5FA0h

I don't know what they are for yet but my guess is that the 20X16 should be the fuel.

[Strugglebucket]

okay, i think i'm starting to get it. you manipulate the number of columns to help you identify different tables. i looked at the the pk2 tables you listed and those ones sure are easy to see. so far i don't see anything like that in the pjo, except those 11col tables you listed but they're tiny. it just looks weird, like most of the interesting stuff is down around past 6000.

that 2col you found is pretty big.

[Versanick]

Would that PH3 flash work, even without an ignition output? Would I be able to let it have its CEL, and just deal with the CEL and have the motor run with my vacuum advance dizzy?

Because that sounds just fine to me...

[carotman]

Nope it won't work. The PK2/PH3 program doesn't work in the PJ0 ECU so far. I tried it and I only got a Solid CEL (same thing as a dead ECU). I'm planning to get involved a bit deeper into this and at least try to find the Rev limiter so turbo guys can push their A20A a bit harder.

If everything goes as planned, my C program will be able to find the REv limit for the PK2/PH3 and the PJ0.

I'll keep you guys updated.

[Strugglebucket]

which potentiometers?

[mia]

sorry, still lost. which ecu are you talking about and what are the adresses on the board?

[Kabuki]

Carotman, have you figured out what the map sizes are in the OKI PJ0 ECUs yet? I haven't even looked, but I would guess we do the same with these as the PK2/PH3 hybrid, where we just implant the PH3 or PK2 Maps in to a PJ0 ROM... I guess I need to look at this to be sure.

[carotman]

Well, the PJ0 is really different from everything I've seen. The fact that the ROM I got was from a california emission car might be the reason.

I would like to get my hands on the regular PJ0 ROM but the 88-89 ones seem to use an internal ROM that I haven't been able to get out.

I suggest that you look at this by yourself. Maybe you can see something I didn't see.

[Strugglebucket]

hey, did you ever get the .BIN for the 86-87 jet ROM?

[carotman]

No

[TWOLOUDNPROUD]

carotman what do you think of the PR4 Ecu from the 90-91 integra to run the b20a?

[TWOLOUDNPROUD]

bump

[carotman]

It would work with the OBD-0 distributor and upper bracket from the B18A1

However, that thing will run too lean and won't have enough timing for the B20A. It will need to be dyno tuned and have a custom program made for it.

[TWOLOUDNPROUD]

Carotman have you tried Data Logging with the PK2 Ecu ? The pk2 has cn3 socket for the Data Logging.

[thegreatdane]

You can not just solder in a datalogging cable and start datalogging on a sctock ecu. And since no one knows the code of the PK2 ecu's it's unlikely that it will ever be possible.

[carotman]

That's right. There's probably a software somewhere that enables datalog in the ECU but it's not available to anyone in the public. Some of the other Honda ECU have been reverse engineered and can now be interfaqced with... it's just not the case with our ECUs yet.

[snoopyloopy]

totally unrelated question to the current discussion, but i figured i'd hijack a thread without searching or reading the thread and just ask. is there any benefit for using an auto ecu on a manual car or vice versa?

[TWOLOUDNPROUD]

Check out my PK2 Hypertech controller i got it from Egay for more info go here http://www.caraddons.com/Catalog/sub...ech_shogun.htm

[A20A1]

totally unrelated question to the current discussion, but i figured i'd hijack a thread without searching or reading the thread and just ask. is there any benefit for using an auto ecu on a manual car or vice versa?

It wont improve shifting or anything like that. Our auto trans isn't controlled by anything more then the TV cable.

As for timing / fuel curves differences or anything like that I dunno.

Other then that I say stick with the ECU you have.
You may end up with an extra function manuals don't need or a loss of a function auto needs, like an idle controller solenoid that kicks in when you're in gear to help keep the idle up.

[TWOLOUDNPROUD]

bump

[Strugglebucket]

Check out my PK2 Hypertech controller i got it from Egay for more info go here http://www.caraddons.com/Catalog/sub...ech_shogun.htm

have you tried it yet? if you go by their list it says it should work on '88-'89 accords. i'm guessing the rev limit is only adjustable up to the stock limit so that's kind of useless. and i don't see how it would be able to control ignition timing on a vac advance systed unless it just works like one of those msd timing controllers with a constant advance or retard.

[TWOLOUDNPROUD]

have you tried it yet? if you go by their list it says it should work on '88-'89 accords. i'm guessing the rev limit is only adjustable up to the stock limit so that's kind of useless. and i don't see how it would be able to control ignition timing on a vac advance systed unless it just works like one of those msd timing controllers with a constant advance or retard.

i have not got it yet but as soon as i do i will post.

[TWOLOUDNPROUD]

bump

[TWOLOUDNPROUD]

I just got it today and it works sweet i can change my Air/Fuel Ratio and RPM Limiter up to 8000RPM and Ignition Timing Adjustable from10- to 10+ you can feel the difference.I will have pics of it installed tomorrow.

[Strugglebucket]

so it can bypass the ecu's rev limiter? have you tried to rev past it yet?

is the air/fuel programmable for different rpm points?