ECUflash First Flashed DSM ECU! (98/99 Flashing FAQ)

[estoyaqui30]

I apologize for the slightly off topic question but it's still a Ceddy tuning question. I

have question and I hope that someone can help. I'm running the latest version of ceddymods. It's a tune that he set up for me, but now I'm going to change injectors and so I have a question about the dead time settings. I'm now running Denso 660s and I'm switching to FIC 950s. So, here's the part I'm not sure about. I was told to start with .200-.300 for dead time, but is that based on switching from original 450s now I would think that Ceddy put in an offset for my Denso 660s, so, if for arguments sake if he put in a .250 dead time and I put in .300 won't that make it .550? Do I have to back out his offset? Any help will be really appreciated

 

[white92talontsi]

I apologize for the slightly off topic question but it's still a Ceddy tuning question. I

have question and I hope that someone can help. I'm running the latest version of ceddymods. It's a tune that he set up for me, but now I'm going to change injectors and so I have a question about the dead time settings. I'm now running Denso 660s and I'm switching to FIC 950s. So, here's the part I'm not sure about. I was told to start with .200-.300 for dead time, but is that based on switching from original 450s now I would think that Ceddy put in an offset for my Denso 660s, so, if for arguments sake if he put in a .250 dead time and I put in .300 won't that make it .550? Do I have to back out his offset? Any help will be really appreciated

I just swapped out my 650's for some blue max 1450's and what I did was since my 650's required .210 deadtime I just subtracted .210.

Basically when I selected all I entered in -.210 and that brought the values back to stock for the 450's and then for my 1450's I just added .735 across the board.

 

[estoyaqui30]

I just swapped out my 650's for some blue max 1450's and what I did was since my 650's required .210 deadtime I just subtracted .210.

Basically when I selected all I entered in -.210 and that brought the values back to stock for the 450's and then for my 1450's I just added .735 across the board.

Okay, now that I read it more carefully, I see what you are saying and it makes sense.

Thanks

 

[RayRay32]

Okay, now that I read it more carefully, I see what you are saying and it makes sense.

Thanks

You could also add the difference between the deadtimes (950's and 660's) to all the values in the table.

 

[colbyc]

You could also add the difference between the deadtimes (950's and 660's) to all the values in the table.

That's what I was thinking, though both methods are essentially the same.

 

[HX35GSX]

Ok... So I've flashed my ECU with the simple Ceddymods. I have a few issues though. I swapped out my 450's for some PTE 1200's because I plan on turning up the boost very soon. I used .390 for latency and 1109 for the scaling. I took some logs for LTFT lo(idle) and mid(cruise). When taking off from a stop it bogs down and kinda misfires. I'm sure this has to do with the injectors as it wasn't doing it with the 450's. Another thing is that I disabled DTC P0141 in the periphery bits but I still got a code. Maybe I didn't "disable" it? Peripherybit2, bit11 is set to "0". I also enabled the readiness monitors but I doubt that has anything to do with it though. My AFRs are also all over the place! What do I do next? any help would be appreciated, today my 30 day permit expired and I need to get to emissions asap for my registration!

These are my latency values:
4.69volts===3.825
7.03======2.205
9.38======1.515
11.72=====1.185
14.06=====0.975
16.41=====0.825
18.68=====0.705

 

[ditchmagnet]

I just got my reflash adapter in the mail, and I want to flash ceddy mods to this ECU I have. I just want to set the injectors and deadtimes for now. I am trying to figure out where I am supposed to connect the re-flash adapter though.

I don't have the car set up for the new ecu though. I have to install this 1g CAS and fix up the wiring, I am just wanting to figure this out now so I can do it when I am ready.

Also, I have PTE 880 injectors. So for deadtimes, I would just ADD 420 to the values there?

Source:
baseinjectordata [ECMTuning - wiki]

Thanks.

 

[ditchmagnet]

I realized that I needed to tap pin 79 on the ECU. When I check the voltage, I am only getting 3.94v and I was expecting 12v.

Is it OK at 3.94v?

EDIT:

I think it is because my battery is dead. I am recharging now.

EDIT:

Got it flashed and running again! Now I just need to figure out how to disable Rear 02 in CeddyMod, I can't find it.

EDIT:

I just disconnected the plug under the drivers seat. No code for now, so I'm good.

 

[_Madman_]

Hello everyone. Does anyone know what is the current situation with Ceddy mods?

Is 20550011 still the latest modded ROM?

Anybody running 98/99 ECUs with older CAS sensors, missfires, no missfires?

Does anyone know what "EFI CeddyMod Evo5/6" logging in new EvoScan means? Is it for custom ROMs, or is it patched to display correct values for plastic ECUs and should be used when logging DSMs?

 

[PieEyedPiper]

Hello everyone. Does anyone know what is the current situation with Ceddy mods?

Is 20550011 still the latest modded ROM?

Anybody running 98/99 ECUs with older CAS sensors, missfires, no missfires?

Does anyone know what "EFI CeddyMod Evo5/6" logging in new EvoScan means? Is it for custom ROMs, or is it patched to display correct values for plastic ECUs and should be used when logging DSMs?

Unfinished, but quite functional.

Yes.

N/A.

I don't know.

 

[estoyaqui30]

Is anyone familiar with injector limits on the H8 ECU with ECUflash? I am planning to replace my injectors and I'm getting tired of replacing them over and over every upgrade. I was going to install FIC 950s, but now I'm thinking maybe I should just 1150s or 1250s and get it over with. I know there no way I would ever exceed those. Will I get them to idle correctly through Ecuflash/CeddyMods.

 

[ed1380]

I got my 1150's dialed in 2 tries. Idles just like it did with the stock injectors.

They've made 1000hp with the black box ecu, so I wouldn't worry about running out of injector

 

[estoyaqui30]

ed1380, if you don't mind my asking, what do you have your 1150's scaled at? Ceddy's list doesn't go up to that size and it seems that most people are not setting the scaling at the advertised size. I am currently running Denso 660's and if I remember, Ceddy scaled them at 647 when he built the Big Map ROM for me.
Thanks

 

[estoyaqui30]

One thing that I was thinking and is someone thinks that this is the wrong forum...shoot me, cause I'm sorry.

I'm editing cels in the ROM that I got from Ceddy and was just thinking, I know that there are numerous variations of 2G MAF's. As in different three digit number, does anybody know if the scaling is the same for all of them? Just a thought.

 

[FLASH1970]

I saw someone on EVOM someone was able to wire in a switched ground on an EVO5-6 to get dual maps (E85/91) to work. Has anyone on here done that? He said he used pin 44.

From what I understand, usually you have to go into the ROM on a laptop to switch maps. Is that correct?

 

[MY1GDSM]

Anybody running 98/99 ECUs with older CAS sensors, missfires, no missfires?

Never had any misfires, Running 98/99 ecu's in 1g's with green top Cas's always run super smooth... .

 

[ed1380]

I'm also running a green top cas with no problems.

 

[Melbowski]

6-bolt swap with green top CAS here, no problems with Ceddymods before, and haven't had any issues with the Evo 8 swap either. Supposedly there's a slight latency issue with the optical sensors (Green Top CAS) vs the hall-effect (Black Top CAS and 2g sensor) that effects the timing especially at high RPM. I made a post on it, but never heard anything back on it.

Basically the latency ends up adding timing as RPM increases, up to 3-4 degrees at 7k. This is also coming from the 3/S side of the park, but our ECUs are strikingly similar. Seeing as we're tuning around knock anyway, it doesn't particularly pose a problem. It'll just seem like your timing is a couple degrees less than what hall-effect users are pulling, but in reality it'll be roughly the same.

 

[ditchmagnet]

I put green top on my 96 GSX and am running CeddyMod. I want to set my base timing now.

Do I need to use a light, or does just locking it to 5 degrees in CeddyMod take care of it? I tried adjusting the CAS by ear to hear a difference, but it wasn't sounding any different till I turned it too far counter clockwise and then it died. I think I already have CeddyMod locking the 5 degrees.

Just looking for some clarification on what I need to do.

EDIT:

I found this, but I don't understand what locking base timing at 5 degrees does:

"The base timing setting in ceddymods is what timing you want the engine to run while the base timing mode is activated in evoscan."

I also found this for setting it, which I think I need to do since I have the 1g CAS.

"For the 6 bolt swapped 2G guys using the 1G CAS, they would hook up a logger and see what the computer is saying for ignition timing. Then check actual timing via timing light on the crank pulley. At that point they turn the CAS until the actual timing matches what the timing value is in the ECU from what the logger says"

EDIT:

I just checked evoscan timing with what I was seeing, and I think it was matching up. I am getting between +5 and +8 on average (it is constantly moving around in there).

So what should I do about locking it at +5 degrees in Ceddy Mod?

EDIT:

I am an idiot, I see it is saying "Base timing with terminal grounded" So that is what it will lock it to when I ground the plug - and you can set it to what you want. So never mind.

 

[Melbowski]

I put green top on my 96 GSX and am running CeddyMod. I want to set my base timing now.

Do I need to use a light, or does just locking it to 5 degrees in CeddyMod take care of it? I tried adjusting the CAS by ear to hear a difference, but it wasn't sounding any different till I turned it too far counter clockwise and then it died. I think I already have CeddyMod locking the 5 degrees.

Just looking for some clarification on what I need to do.

EDIT:

I found this, but I don't understand what locking base timing at 5 degrees does:

"The base timing setting in ceddymods is what timing you want the engine to run while the base timing mode is activated in evoscan."

I also found this for setting it, which I think I need to do since I have the 1g CAS.

"For the 6 bolt swapped 2G guys using the 1G CAS, they would hook up a logger and see what the computer is saying for ignition timing. Then check actual timing via timing light on the crank pulley. At that point they turn the CAS until the actual timing matches what the timing value is in the ECU from what the logger says"

EDIT:

I just checked evoscan timing with what I was seeing, and I think it was matching up. I am getting between +5 and +8 on average (it is constantly moving around in there).

So what should I do about locking it at +5 degrees in Ceddy Mod?

EDIT:

I am an idiot, I see it is saying "Base timing with terminal grounded" So that is what it will lock it to when I ground the plug - and you can set it to what you want. So never mind.

To set your timing properly, you'll need a timing light. Since you're '96 you can ground the timing set plug to lock the timing at 5* or you can use Evoscan's actuators to lock the timing at 5*. If you want to use Evoscan, start the car, let it come to operating temp, and then engage the actuator. Once it shows the actuator is engaged the timing will be locked at 5* BTDC until it disengages (i.e. after like 15min or if you turn it off manually); using a timing light adjust your Cam sensor so that the line/notch on the harmonic balancer lines up with the line for 5* on the lower timing cover when the timing light flashes (see picture). Tighten the sensor bolts, double check it's still at 5* and you're done.

You must be logged in to view this image or video.

Guide with pictures: http://www.plymouthlaser.com/timin.htm

 

[ditchmagnet]

Thanks, I ended up locking it at 5 via the grounding plug. That was the first time I had used a light, but it was already dead on at 5 degrees, so I didn't have to do any more adjusting.

 

[idkiliketurbos]

I am having an issue with the ecuflash program not being able to open the ROM files because I don't have the correct definitions. I was using my friends cable and it would read from the ecu but I couldn't flash my car (only wanted to set up 2 step). Can anybody point me in the correct direction? The car is a 98 gsx and i've been reading up on the many threads on dsmtuners and none of them are getting my computer all set up to flash tune.

edit: Nevermind, tried to overthink.

 

[ed1380]

You need to download the definitions. All of them are available on ceddy's site.

 

[Tiki2777]

Speed Density= Flash regular/bigmaps MAF rom, and log aircounts for MAF and SD (simulated SD counts) to begin modifing VE table on MAF rom (its all straight 100% VE stock). Then, when all the aircounts equal each other, (that is what you are trying to do when modifing the VE table), copy the VE table over to the SD rom and flash it on.
BAM

 

[idkiliketurbos]

I'm still having an issue with the definitions. I have them downloaded onto my computer, and saved in the eclipse part of the rommedata file in my openecu folder. When I read the ecu it has a pop up that says I don't have the correct definitions to open the rom file. I don't want to flash anything until I can get this part working. I don't really know what would cause it unless the definitions on ceddymods website for the 98 gsx aren't correct.