sr/ka eporom ECU Programming who's done it

[bongnak]

hi there im new to this site. going to pick up an s13 soon and was wondering if there is someone in here tuning their ecus by the way of a rom editor; Mikes Ztalk or srtalk at http://www.zcontrol.net/ ,or the rom editor at http://www.925style.com/edittool_vb.html

Ive been tunning ecus and burning eproms for hondas but have lost interest in them. I have most of the many hardware required to tune ecus but just need a nudge in the right direction.

[DRIFTEADOR]

awesome. looks like hondata/uberdata/chrome for nissan. thanks, i've been looking for something like this.

btw for those who dont know, this is basically a diy tunable ecu. same concept as a jwt except you can adjust fuel/ign maps without the need for other piggybacks. this it isnt a piggyback, it allows you to create tables from sratch.

[SSS]

Live Edit and a Xtronics Romulator will turn the SOHC ecu into a programmable on the fly ecu, apart from editing ignition/fuel maps, you can set options for upgrading to larger mafs and re-scale for larger injectors etc.

Xtronics Romulator is $179.95 (search google for the site address), and Live edit is free (for the moment, but the page is down). It's fully functional, however the author is updating the software continously with new features, even if a version comes out that has to be purchased, i don't believe he'd ask more than $70 for it.

[ossBASHA]

People should seriously consider taking the ECU editting route! It's practically as good as a standalone and costs a fraction of the money (burners, chips, etc...). But the truth is a lot of Nissan owners like things done for them.

[DRIFTEADOR]

technically, any reputable shop who can tune a standalone *could* tune this for you. its just a matter of whether they will want to mess with it, being new and labeled as freeware. the honda/acura community has a lot of street tuners across the states. sometimes a few people in need of tuning will put some money together and fly a know tuner to come tune various cars at once. thats what we need

[Def]

People should seriously consider taking the ECU editting route! It's practically as good as a standalone and costs a fraction of the money (burners, chips, etc...). But the truth is a lot of Nissan owners like things done for them.

I was seriously thinking of a ROM Tune a while back, but it's not that elegant of a solution when you can't tell where in the maps you are. Consult/SR Talk can help with that from what I hear by telling you where you are in the maps, but I found the info on getting that to work with SR swaps sketchy at best. I'm assuming a few "diagnostic utility" wires need to be hooked up between the ECU and dash harness, but no firm info on that from what I could find.

I'd seriously consider this, but it just seems like an easy way to pop the engine if you can't tell where you are in the maps, and since MAFs are non-linear, it is harder than you might first think to tell what load column you're in.

[Bernard]

It's really quite easy to figure out where you are in the maps. What you do is make an entire fuel column rich and log maf voltage and rpm and afr's (wideband). Do this for a couple of columns and you'll know pretty quickly where you are in the fuel maps. Another way you can do it is with free consult port software by setting a timing column to certain amount. Then log timing, rpm and maf voltage. I go one step further and enter the maf voltage at logged points on the fuel map so I know instantly where I need to adjust the maps. You can experiment without going into boost to see how it works.

[SloMoe]

The problem I have is finding ka24de bin files. Ive found many SR bins but KA are harder to come by, even stock ones. I agree this is a good route to take as far as tuning capability, far better than any piggyback controller, but unfortunately there isnt much support for the KA

[Bernard]

There are a bunch of them on the tangentrix site, including .adr files. Do a google search for z32 ecu tuning and look for a link with cherrypicker in it. That website details how to tune a z32 ecu. Same thing applies to a s13 ecu. The maps are laid out in the same manner although the addresses may be different. Do the same for ca18 ecu's, sr20 ecu's, etc. They all work in a similiar manner. Someone with a KA needs to step up and buy a daughterboard and try it. I'll be tuning a couple of ka's in the spring with daughterboards so I'll post back with results. It's not very hard once you've got the theory behind it understood.

[xsparc]

ive done some on the ka24e, its actualy really simple to do, most of the addresses are the same for the sr. the best part is you dont need a daughter board, just desolder the rom, drop a socket in and burn new eproms all you want. you can use romedit or whatever, but i chose to write me own to make it a bit easier. tha ka24de is a bit harder, i have never seen a map for it and as far as i can tell you DO need a daughter board like the sr.

[sil80drifter]

live edit keeps crashing on me every time i try to do someething with it. then it wont start back up unless i reinstall it. very annoying, and not sure why. does it on both my laptop and desktop, both are running windows xp.anyone help?

sil80

[toki]

zsparc I am looking for the proper address files for a KA24E. Have you actually burned a new chip with the address files from a SR? Please email me [email protected] so we can talk more.

[skatanic28]

ive found a few .bins and .adr's for the ka24de, but im having trouble reading the maps correctly. what is with the red and blue? the red seems like actual data (pusle width for fuel and degrees for timing), but the blue is in the 1xx's all the time. anyone help me out?

[SloMoe]

Im pretty sure the blue area is the area of the map the the ecu runs in closed loop.

[SloMoe]

ive found a few .bins and .adr's for the ka24de

Do you think you could share some of those KA24DE .adr files with me, I have some .bins, but I cant seem to find any address files. Ive tried using some the the SR address files but I'm weary of using them to burn a map for my KA ECU. It looks like the fuel and ignition map address are the same, but I'm not sure about some of the constants like the injector KVal, response time and the VQ maps. Shoot me an email. [email protected]

Modified by SloMoe at 12:34 AM 1/18/2005
Modified by SloMoe at 12:38 AM 1/18/2005

[ossBASHA]

SloMoe: It is my understanding that the K value is incorrect when using SR .adr files

So no one has a chipped KA ecu?

[Xero]

okay, pulling this back from the dead a little as I'd like to tune my ECU for 370s and a J30 MAF, then take it and dyno tune it later.

I'm running RomEditor 1.98.41E, but what I mostly need to know is, the KA-DE, does it use the same set up as the SR, meaning it needs a daughter board to retune, or is it like the CA, where you can desolder teh EPROM chip, put in a socket and quick change the EPROM that way.

simple version: does the KA-DE ECU require a daughter board.

I've got a nice little 48pin EPROM/flash burner I got a while ago, so I can pull the bin file off of the chip (unless it's copy protected, which would be straight stupid if it was, nothing really proprietary about the fuel maps)

so I can get the KA-DE bin in a bit (hunting down a second DE ECU)

[ossBASHA]

90 and older use eproms91 and newer use daughterboards

[sil80drifter]

has anyone besides deviousKA done the SOHC or DOHC chipping thing? The software seems to be buggy for me and doesn't look like it would work with the adr or ini files I have. It either crashes (liveEdit) or is impossible to tune (RomEditor).help?

sil80

[Xero]

might try zcontrol.net they may have something, I was looking over there earlier, might pick up their consult reader, I wonder if I could get it to work with my S13, though.

and what do you mean impossible to tune with RomEditor?

[sil80drifter]

the bin files show up all messed up in RomEditor and like half of the map will be all screwed up. And the tabs are all hidden one behind another, you never know which one you're on, or which is which... I just don't know if I can trust it.

sil80

[SloMoe]

The bin you're using is probably corrupted. I have no problem with RomEditor other than it's poor english translation and tabs being a little screwy. I have seen one KA bin being circulated where half of the map is corrupted. I have a good bin if you need one. Im still trying to find out the address of things like injector K, Void Blast off, and TTP Min and Max. The timing fuel and VQ maps are pretty easy to find and edit in a normal hex editor, but those others have smaller ranges and could be anywhere.

[sil80drifter]

so there is no completely done out KA -E bin out there?

sil80

[Toahk]

I have a good stock ka24e bin. aim me if you want it.

[deviousKA]

Hey everyone, after seeing this post this morning i decided to figure out some of the problems with the SOHC KA24E address files and .bin. Its been a while since ive worked with this ecu, but i guess i got lucky, its cracked!

I was able to find the correct high and low maps for both fueling and ignition. The address of the timing maps before were incorrect, high was actually a fuel. Heres a picture of the "lost" ka24 high octane ignition map.

It is found at 0C00 and looks like this.

here is the low octane ignition map 0800

Also i have run across 3 different fuel maps, maybe someone can help me find out which is which. As of now im assuming the high/low fuel maps are in same arrangement as sr20.

high octane fuel map 0100

low octane fuel map 0E00

this is the other fuel map i have come across, It is in the same address location as the SR high octane ignition map. I do not know if it should be subsituted for one of the above.

located at 0D00

Ill edit this post and have a link to the .adr and a good .bin for 1990 ka24e here in a while.

Heres a good 1990 240sx .binhttp://www.hybridka.com/misc/240sx_ka24e_stock.bin

For some reason i cannot upload the .adr and make available to download, I can email it or unless someone knows how to make it downloadable from the net using simple webspace.
Modified by deviousKA at 11:08 PM 2/8/2005

[sil80drifter]

yay, deviousKa is back!

this is a RomEditor map, right? how does one convert the kg/mm to psi, and how does one account for boost? LiveEdit always crashes on my and my friends computer (XP and win2K respectively) when I try to modify ANY values, anyone else have that issue?

sil80

[deviousKA]

Those shots are from Romeditor yes, although the information could also be used to set up live edit. As far as converting the flow i believe it is kg/cm². Psi x .0703 = kg/cm2

I may be wrong.

btw. live edit works good for me, few errors ive encountered but it does work if your patient and try different versions.

[nab911]

I have a free romediting program but my burner never works right. It can read chips just fine but throws an error when burning them.

[deviousKA]

Still cant seem to make that .adr downloadable.

nab911, what type of chip and burner are you using?

[ShadowKnight006]

DeviousKA, have you tried to make it into a zip file? My guess is that if you have not, the file type may not be recognisable for uploading. Try making it into a zip file and posting the zip file, then people can download it and unzip it.(note for anyone who doesn't already know, a zip file is a compressed file using a program such as winzip). Just an idea. I am glad to see this subject brought up again. Has anyone spoken to the gentleman that does the website with LiveEdit? I want to get it but the site is down and I don't know of anywhere else to get it.