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

[Ceddy]

Got my Launch Control and CEL on Knock code working!

Still getting the bugs out of the AntiLag code.

The CEL on Knock lights the CEL if you have over a certain number of Knock Counts.
If your CEL is lit from an OBD code, it blinks the CEL off with Knock.

Launch Control use a lower RevLimit until you reach a certain speed then switch to the normal RevLimiter. Also know as 2-Step or Stutterbox.

AntiLag will retard the Ignition Timing when you are using Launch Control, to build boost.

Also have the Map Select done, but haven't tested it yet. It allows you to use the second set of Maps on the ROM. So you could have a pump gas and a race gas tune.



Video: Knock CEL lighting during Launch Control
(I had to turn knock sensitivity all the way up to get my car to knock)
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[kevbojunior]

this is great. i have a 99 gst and all i gotta do is get it tuned like they do on the stock ecu evos using ecu flash?

 

[knochgoon24]

this is great. i have a 99 gst and all i gotta do is get it tuned like they do on the stock ecu evos using ecu flash?

Yep, except you'll need an openport 2.0 cable, not the 1.3 the evos can use.

 

[kevbojunior]

is he just finding all the options or does that program just enable them from your ecu to just change them? so i would also be able to get the same person that tunes my buddys evo to tune my car with the same program? im just making sure its that easy. that means speed density should be possible going this route too correct?

 

[knochgoon24]

is he just finding all the options or does that program just enable them from your ecu to just change them? so i would also be able to get the same person that tunes my buddys evo to tune my car with the same program? im just making sure its that easy. that means speed density should be possible going this route too correct?

Ceddy is writing new code for things not included in the factory ROM. He's not just activating preprogrammed stuff.

Once you get the ROM and xml files set up correctly, anyone familiar with ecuflash should be able to tune your car.

 

[rocafellafw]

The 98/99 ECUs may not handle the 95/96 Inverted CAS and Crank Trigger Setup well.

Im on a 98/99 ECU and I have a 6-bolt swap with the pigtail CAS is this what you mean by that ? Should I swap to a blacktop ?

 

[Ceddy]

Im on a 98/99 ECU and I have a 6-bolt swap with the pigtail CAS is this what you mean by that ? Should I swap to a blacktop ?

You don't have a 95 or 96 CAS so you will be fine.

The 1G Black Top CAS has the reputation of have the best signal, but the 1G Green Top works fine 99% of the time.

The 95/96 CAS output a signal that is inverted from all the other years.
Its hit or miss with the 95/96 CAS, sometimes your fine, sometimes you get missfires and it runs choppy.

 

[rEclipserGST]

I just tried the spyder ecu in my car, and the fuel pump doesn't turn on.
Everything else seems to work, even the boost gauge seems functional.

I'll try to trace the fuel pump relay and knock sensor pins back to the cpu to see whats different. Hopefully its just something like a missing resistor, that I can add.

If the fuel pump was the only problem, why not just rewire it or "rig-wire" it thru an existing fuse?

I have a 95 and my 100% TPS. My buddy has evoscan and it worked on my car. I just need more options to narrow down and fix this throttle problem. My car drives and all but its just a biotch to get above 2.5k rpms, after that it seems fine. BUT if you let off the gas, theres no coming back unless you put it in Neutral, then rev it above 3k then back in drive.

I think its the TPS connector and the wire or ecu related. BTW my ecu is not eprom unfortunately

 

[m_0ney_pit]

Its not that simple. The chip that controls the fuel pump relay function inside the ecu I believe may be slightly different from gst/gsx to spyder. This chip is controlled at the hardware level and not software via the rom.
This is why when powered on the fuel pump relay pin outputs +5 volts on the spyder because it is expecting to activate a relay called the 'fuel pump relay module' which pulls the fuel pump to ground and activates the fuel pump relay.

On the gst/gsx the ecu does the function of the 'fuel pump relay module' internally by closing the switch to ground activating the fuel pump relay.

If the fuel pump was the only problem, why not just rewire it or "rig-wire" it thru an existing fuse?

unfortunately

 

[Ceddy]

If the fuel pump was the only problem, why not just rewire it or "rig-wire" it thru an existing fuse?

I have a 95 and my 100% TPS. My buddy has evoscan and it worked on my car. I just need more options to narrow down and fix this throttle problem. My car drives and all but its just a biotch to get above 2.5k rpms, after that it seems fine. BUT if you let off the gas, theres no coming back unless you put it in Neutral, then rev it above 3k then back in drive.

I think its the TPS connector and the wire or ecu related. BTW my ecu is not eprom unfortunately

You can "rig" it by simplely grounding the fuel pump relay wire, but the fuel pump will run when the key is in the ACC position. You really notice how loud a Walboro is once you hear it without the motor running.

The 100% TPS, most likely means the signal isn't get back to the ecu. Check for breaks in the wire and loose pins at the ECU and TPS connectors. Also check for +5v and ground at the TPS connector.



All my DSM code Mods are coming along well, should have a public release soon.

 

[Hubbard 0]

You can "rig" it by simplely grounding the fuel pump relay wire, but the fuel pump will run when the key is in the ACC position. You really notice how loud a Walboro is once you hear it without the motor running.

The 100% TPS, most likely means the signal isn't get back to the ecu. Check for breaks in the wire and loose pins at the ECU and TPS connectors. Also check for +5v and ground at the TPS connector.



All my DSM code Mods are coming along well, should have a public release soon.

Even with my car running and having the stripped out rear seats, you hear how loud a walbro is. I wish it was audible outside the car though.

 

[rstchris]

Even with my car running and having the stripped out rear seats, you hear how loud a walbro is. I wish it was audible outside the car though.

My old 96 RS-T in the photo <<< over there had the metal tank and sending unit with the 8mm nuts. The wally 255 sounded like I had a supercharger hidden in the tank. WTF

 

[Ceddy]

Started separate thread for my code mods, because this one is starting to get long.
Here -> http://www.dsmtuners.com/forums/tuning-engine-management/347070-ceddymod-v1-ecuflash.html

Feedback I have gotten from beta testers so far has all been positive, with everything working correctly.

Should have the next release done sometime next week.

If anyone has feedback or something they would like to see added let me know.

 

[Ceddy]

Found the Load Limit and Injector PulseWidth Limit!

For the 20550011:

Load Limit is at 2A3C0,
1D F2 CA 90 change to 00 00 00 00

Injector PulseWidth Limit is at 2A3D8,
1D F2 D8 90 change to 00 00 00 00


With these patches in place you can use the MAF to is max capacity,
~500 HP for the 2G MAF
~650 HP for the Evo MAF

 

[anmGST]

This is a great thread keep up the work.. I hope this will be an option for us at local tuner shops. Or is it already. I just sold my GVR4 with DSM STG3 chip and will be picking up a Spyder/GST this weekend and knowing I can flash the ECU like I did with me EVO will be FANTASTIC..

 

[Ceddy]

This is a great thread keep up the work.. I hope this will be an option for us at local tuner shops. Or is it already. I just sold my GVR4 with DSM STG3 chip and will be picking up a Spyder/GST this weekend and knowing I can flash the ECU like I did with me EVO will be FANTASTIC..

Thanks. Any shop that can tune an Evo with EcuFlash can tune a Flashable DSM, they are pretty much the same thing tuning wise. I recommend tuning your car yourself to most people, you will learn a lot about your car that way. But if you are not comfortable with that, there are a lot of reputable EcuFlash tuners.

 

[jrohner]

It seems like the idle control code (or just the settings) is better in the dsm ecu's as the evo ecu makes car's idle a bit weird, even in an evo. I'm not the first to say this either.

 

[the_mork]

This is for evo8 ecu in response to the last two posts do not consider this valid information for DSM ecus.
It is actually an evo7 rom but regardless 9055 cannot be used with a 98/99 ecu. FWIW 9055 always felt slow and crappy on my car. 9653 only took a little bit of work to make it idle right for me. Make sure you properly adjust your BISS then change your idle area timing from 5* to 7* I don't know fore sure but I think changing 0-1000RPM in the 0-60 load range to 7* is approximately right.

Edit: Looks like this thread was cleaned up a little bit and the posts I responded to are gone. The first sentence is still applicable to this topic so I'll leave the post but if a mod thinks it should go away or be shortened down feel free to what whatever you want to it.

 

[Boosted3s]

I am currently running the extended maps rom with a evo maf and I seem to be hitting fuel cut, and getting a p1103 code which is wategate solenoid. I double check the boost cut setting under limits and it is correct. The car is currently at 22 psi on a b16g. Not sure if I am missing something here.

 

[Hubbard 0]

I'll have my ECU by Friday, then I can start the tuning.

I was/am on an Evo ECU, but I'm having issues with injector scaling so I'm coming to this side to simplify everything.

I'll probably play with the stock ROM first and get it to a happy place, then mess with the modded stuff.

 

[the_mork]

I am currently running the extended maps rom with a evo maf and I seem to be hitting fuel cut, and getting a p1103 code which is wategate solenoid. I double check the boost cut setting under limits and it is correct. The car is currently at 22 psi on a b16g. Not sure if I am missing something here.

Post in the evo8 ecu thread.

I refuse to help you in this thread and I hope no one else will either, this thread is for H8 discussion and you are shitting it up.

Post your question in the other thread and I will happily help you.

Edit: Damn your confusing, why do you have two Ecus listed in your profile? I am assuming that since you mention boost cut you are talking about the evo8 ecu and this is supported by "currently running 03 evo8 ecu" in your profile but for the time being PLEASE take out one ecu or the other from your profile.

 

[Boosted3s]

I swapped back to the 2g ecu because the car would barely drive with the evo 8 ecu and this is my DD. I am going to stick with the 2g ecu for awhile, It seems alot les complicated to figure out.

 

[the_mork]

Alright sorry to jump down your throat then.

What sort of loads are you seeing when you hit fuel cut? IDCs? Do you still have your stock bcs connected but without vacuum hoses? A removed or failed bcs is AFAIK the only reason that you would get a wastegate solenoid malfunction and I doubt that it is related to your other problem.

 

[Boosted3s]

The air flow/ rev load is at 200 and the Airflow HZ is a 1530.

I am really not sure if the solenoid is there or not. It has never thrown that code before until it hit what I think is fuel cut twice.

 

[Ceddy]

The air flow/ rev load is at 200 and the Airflow HZ is a 1530.

I am really not sure if the solenoid is there or not. It has never thrown that code before until it hit what I think is fuel cut twice.

Most likely throwing a code because its trying to use the wategate solenoid and its not there.

To get rid of fuel cut, change Boost Cut Delay Timer in the Limits section to something large.

My next release has a way to turn the fuel cut off permanently. Everything is coded, just need to do some testing before release.

I have also made a BigMaps version, which is large Ignition and Fuel maps. The Evo guys have reported some driveability issues when you rescale the low load areas of the maps like I did for Extended maps, so i did Big maps so we wouldn't have this issue.