ECU Editing

[JohnnyT]

I recently purchased a Stage III chip for my Laser and I was wondering if the same chip would work for my friends 93 Eclipse GSX or my other friends 94 Eclipse GST. So what I really want to know is will my chip work in all 1g cars? And what about 2g's?

 

[pwayzjellyroll]

Mis-understood the question >_> answer retracted.

 

[JohnnyT]

From what I understand of ECU's. The cars would have to be the same in the fact of FWD/AWD and Manual/Automatic. From what I can tell there are different maps/information on ECU's for the different styles. I believe the 2g's use a different style connector then then 1g's. Also, what's it 92+ are 7 bolt's? Does that effect the ECU? Are the cas's different I'm not sure. If someone else could chime in that would be good.

I am talking about the EPROM "the chip on the ECU" not the ECU itself I have a socketed ECU and I am able to duplicate EPROM chips, but I want to know If I copy my stage 3 chip if it will work in other 1g's or what changes will have to be made. I would post this in the ECU tech forum but it won't let me.

 

[bling5tatus]

That chip is tuned for your injectors, it *may work on those other cars, but if their injectors are different or if they have a gm maft and you have a 2g mas... it wouldn't transition very well. You'd have to have fuel mgmt. The main idea of the dsm chips is to get your tune for YOUR car nearly dead on and then do very fine adjustment tuning with an afc or similar.

It may work, but I wouldn't try it. Also, it's worth noting if you accidentally insert the chip backwards on a socket then you will fry your ecu.

Check the dsm-ecu group on groups.yahoo.com... someone can probably provide a link for you because I don't have it off hand. They are very versed in eprom editing. I should also say that I'm not sure Jeff would like you copying your chip and giving it out to other people... it is kinda like "pirating".

 

[JohnnyT]

Ya, thanks for the help, I never thought about it as pirating I wont be doing it but I was just curious because my friends would like to try it to see if it works well for them so I might just let them borrow mine for a week. I was also wondering If there is any certain program people use that works well for editing the chips, I am very new to this and I have been reading a lot but it seems like all the programs people used to use are now outdated and unsupported I hear a lot about dsm link, but I can't afford it.

 

[bling5tatus]

TunerProRT ... also check out www.ds-map.net

 

[architechnik]

Johnny, I'm about to buy a setup from Moates.net using tunerpro - just waiting for a response from them on a few Q's.
Zif Socket, chip relocation, cables, a couple SST 27SF512 chips, and of course the burner

http://www.moates.net/product_info.php?cPath=26&products_id=39
http://www.moates.net/product_info.php?cPath=26&products_id=172
http://www.moates.net/product_info.php?cPath=51&products_id=48

There are a couple of sites that will even put out a hex code after selecting a few options so you can burn your own setup.

Do you know which setup will you be using?

 

[JohnnyT]

Well currently I have stock injectors but eventually I will be going up to 650's, right now the only mods that its seems the chip would need to know is the 255 walbro pump and I have a 2g maft. Oh, and I forgot, I have already bought the chip burner and reader off of moates, and I also bought 5 blank chips and a low profile zif socket. For now I think I would just like to switch chips in and out, but eventually I will look into dsm-link.

 

[bling5tatus]

Architechnik, I just ordered the Ostrich Emulator V2 on Friday from Moates... looks like you're going for a similar setup in a way. Speed-density here I come.

 

[JohnnyT]

So I have registered DS-MAP but I can't seem to find the program to download anywhere? Is there a special section for it?

 

[bling5tatus]

Everything you need to get started is in this section:

http://www.ds-map.net/phpBB3/viewforum.php?f=2

Keep in mind that this is a speed density set up and you will need to ditch the mas you have and buy a 3bar map and an iat sensor.

 

[JohnnyT]

Ya, I have been reading up on it, I still don't know if I can afford this but I am excited to look into it, I have alot going on with college ,wedding etc so funds are tight. I was also wondering if the AEM Uego Wideband is a good wideband for doing something like DS-Map, it is the cheapest I could find and I have heard good things.

 

[bling5tatus]

I bought an innovate lc-1 wb controller/sensor (no gauge) for 170 dollars at a local shop here new in the box.

 

[JohnnyT]

So how would that Wideband work with dsmap? Wouldn't I loose the benefits of being able to see what is going on, if I order one without a gauge?

 

[architechnik]

If you have a spare port on your ECU, as in you don't have CA emissions or no ABS, there is a way to route it so you can read the wideband on a standard logger... I'll have to check up on exactly how.

Here's a link
http://www.dsmtuners.com/forums/showthread.php?t=200176&highlight=dsmap+wideband

Architechnik, I just ordered the Ostrich Emulator V2 on Friday from Moates... looks like you're going for a similar setup in a way. Speed-density here I come.

Yeah, I placed my order today but I skipped on the Ostrich 'cause I don't have a laptop to use but already have a palm logger. I'll just flash a chip, log the changes and flip out the chips as I edit them. I bought two chips and a remote mount so I could throw it where ever I can easily get to it.

I figure I'll offer making "stage" chips for people that don't want to get too far in, but have a modified setup and want those other perks (stutterbox, rpm limit, 2gmaf on 1g etc).

 

[JohnnyT]

So I would just have to use something like a pocket logger? Where can I get cheaper pocket logger cables that aren't 100 bucks?

 

[architechnik]

Ebay has some used palms for pretty cheap most of the time. The cable you can make yourself as long as you have the cable that goes from the palm to serial.

Directions for the cable can be found here:
http://www.dsmtuners.com/forums/showthread.php?t=203316

 

[bling5tatus]

So how would that Wideband work with dsmap? Wouldn't I loose the benefits of being able to see what is going on, if I order one without a gauge?

Actually according to the ds-map guys you can wire your 5v wb signal directly into the ecu's stock o2 sensor location. PDyno has wb logging capabilities, all the wb gauge is for is so you can "see" it while it's happening... but a logger can allow you to see the proper things after a run anyway... I believer you can set up alarms too so if you run dangerously lean your logger will beep at.

 

[squall333]

Actually according to the ds-map guys you can wire your 5v wb signal directly into the ecu's stock o2 sensor location. PDyno has wb logging capabilities, all the wb gauge is for is so you can "see" it while it's happening... but a logger can allow you to see the proper things after a run anyway... I believer you can set up alarms too so if you run dangerously lean your logger will beep at.

remember stoich on narrowband is about .45 volts and 2.5 on wideband so youd need to account for that

 

[BoostedTalonTS]

remember stoich on narrowband is about .45 volts and 2.5 on wideband so youd need to account for that

Most wideband O2 sensor setups will offer a user selectable output that can be used in place of the factory's narrow band O2 sensor... going this route, you can eliminate the existing O2 sensor's input to the ECU and replace it with that of the analog output from the wide band. -Just be sure to keep the existing narrow band O2 sensor's self-heating wires hooked up or your will get a CEL. From there you can just use any existing logging setup to monitor wide band O2.

 

[notsofastdsm55]

remember stoich on narrowband is about .45 volts and 2.5 on wideband so youd need to account for that

actually ds-map has wideband images, in other words the stock codes has been rewritten for the 2.5v stoich of the a wide band. and if I am not mistaken they have an aem bin(4.05v =stoich on aem) so all you have to do is wire one of the outputs to the ecu(pin 104 I believe but don't quote me on that) also if you are not going to run dsmap I can post the directions for modifing the code in hex. Its really simple, only ten code changes.

If you couldn't already tell I will be switching to dsmap soon!!

 

[JohnnyT]

I am working my way to dsmap, and I did just buy the aem wideband, I will soon be getting the aem boost gauge/controller. I would like to know how to hookup this wideband and replace the stock o2 and the hex code would be much appreciated, I am still new to hex editing so detailed instructions would be great, I will probably be modifying my stage 3 chip or I can just burn a different one. I will move to dsmap sometime but for now the hex code will work great.

 

[bling5tatus]

actually ds-map has wideband images, in other words the stock codes has been rewritten for the 2.5v stoich of the a wide band. and if I am not mistaken they have an aem bin(4.05v =stoich on aem) so all you have to do is wire one of the outputs to the ecu(pin 104 I believe but don't quote me on that) also if you are not going to run dsmap I can post the directions for modifing the code in hex. Its really simple, only ten code changes.

If you couldn't already tell I will be switching to dsmap soon!!

I got my Ostrich 2.0 this morning early. UPS man doesn't normally come that early. And yes, you're absolutely right. The code in the dsmap images have been rewritten to handle the 5v signal going DIRECTLY INTO THE OLD o2 sensor's input in the ecu.

Yes, even though I will not use the hex, please post it anyway to encourage people that may be afraid to go out on a limb. Editing hex with a good hex editor is not hard to do. I am using KHexEdit... it was very easy to get because it's offered as a package in the package manager on Ubuntu... and free (linux duh).

 

[architechnik]

I got my Ostrich 2.0 this morning early. UPS man doesn't normally come that early.

Congratulations! (bastard )

I found a site that has a lot of resources here. It's what I've been using to reference with the different aspects, but some of the links no longer work.
http://home.earthlink.net/~grey2.0/ECUedit.html

This site has a bunch of different codes specific to various modifications:
http://users.wpi.edu/~ktarry/dsmtech/dsmromedit.html

Here's a cool little tool that will output the code based on the selections you make in pull down menus. I'm not sure how much I would trust just placing the whole thing straight in, but if you play around with the different options you can figure out which code effects which part.
http://ilostmymind.com/ECU/DSM/custom.html

 

[Street Surgeon]

I recently purchased a Stage III chip for my Laser and I was wondering if the same chip would work for my friends 93 Eclipse GSX or my other friends 94 Eclipse GST. So what I really want to know is will my chip work in all 1g cars? And what about 2g's?

So what you're saying is that you bought your chip and your buddy wants it, so you want to know if you copy it for him will it work? Yes it would assuming his setup is identical, and yes you would be a dick for doing so since someone put a lot of time and effort into it to sell.

On a different note, I'd recommend getting an NGK AFX wideband, for whatever reason the sensors (though the same sensor is used on both the LC1 and NGK units) last a LOT longer in the NGK unit.