Just rechecked all the wires, the fuel pump relay was hooked in, the AC clutch wasnt so that makes no difference at all. Now, any idea I had is gone haha still doesnt shutoff without me killing the fuel pump on the hardwire. Any idea if having the fuel pump on a hardwire, not hooked up to the relay would cause a problem?
Ok heres the situation. The car started up and shut down perfectly with the 2g ecu in it. I have the fuel pump setup on a hardwire and thats about the only thing different. I just installed the evo 8 ecu switched the correct wires (rechecked them already) and the ecu was able to be flashed perfectly through the obd ports and starts up fine. The only thing is now it wont shut down with the key so I have to kill it using the fuel pump switch. Any ideas? All the ignition wires are the same for the evo and dsm so nothing was touched. Also the evo ecu isnt grounded on the plate but I figured its a plastic housing so there was no need for the brackets. Any help??
Dont think so, had the battery disconnected through the work, all the pins are now in the correct place. Somehow its still getting power with the key out. Even when I turn the turbo timer on, if I turn the key off it doesnt begin to count down so its getting power from somewhere thats what I dont understand. The relays were working correctly before the swap, is there any fuse that could do this?
yea i just wanted to know if it was a problem others were having, really doesnt bther me. Tell me gsxdna any idea about the shutdown problem??
Also I picked up some codes for cam and crank sensor malfunctions, I have a 1g blacktop cas on the 2g harness...does the signal have to be inverted for the ecu? In other words, do I have to redo the pins like RRE says to do on the ecu for the 95-96 ecu cars or is there something else I have to do? Thanks
Did you say fuel pump switch? What the hell do you have a switch on your fuel pump for? Clearly that's the problem. It sounds like you wired in a secondary ignition switch. Obviously you would have to turn them both off to shut down the engine.
For saftey reasons, you should really let the ECU decide when to turn the pump on and off.
Did you say fuel pump switch? What the hell do you have a switch on your fuel pump for? Clearly that's the problem. It sounds like you wired in a secondary ignition switch. Obviously you would have to turn them both off to shut down the engine.
For saftey reasons, you should really let the ECU decide when to turn the pump on and off.
A lot of people install a cut-off switch when they do a fuel pump re-wire. It's a form of theft-deterrent. It has nothing to do with the ECU's ability to turn the pump off and on when the circuit is closed.
EDIT: MOVED to Tuning/Engine Manangement forum. I cleaned up as many off-topic/redundant posts as I could. Let's keep this thread as technical as we can. If you don't know the answer, don't post. If you have questions, ask them in as concise a way as you can. And don't forget spell-check.
is the evo pcm completely stock or is it reflashed with a different rom/program?
reflashed with a different rom, my buddy has an evo so hes helping me set everything up in ecuflash.
Quote:
Originally Posted by the_mork
If I read his post correctly his actually does cut the ecu out of the equation though.
Yes, I didnt follow the correct procedure for the rewire which was dumb but I did a motor swap and had problems with the fuel pump so I ran a wire from the power wire to the battery with an inline fuse and a switch right at my knee. It worked well with the eclipse ecu even though its not "safe" Im not worried about that, Im worried about its function.
All this though doesnt explain why I still have spark and why the turbo time stays on with the key out of the ignition. The car should shut down and the fuel pump stay on like it used to correct?
yea i just wanted to know if it was a problem others were having, really doesnt bther me. Tell me gsxdna any idea about the shutdown problem??
Also I picked up some codes for cam and crank sensor malfunctions, I have a 1g blacktop cas on the 2g harness...does the signal have to be inverted for the ecu? In other words, do I have to redo the pins like RRE says to do on the ecu for the 95-96 ecu cars or is there something else I have to do? Thanks
Concerning your issue with your codes for crankshaft sensor positioning, i find that very interesting. I have two ROMs I am playing with. One is an from an EDM Evo 8. That ROM throws no codes at all, and works flawlessly. I am also trying to get a USDM Evo 8 ROM with the Tephra Mods to work. When I flash the USDM ROM, I throw similar codes. Haven't figured it out yet. I bet if you use my EDM ROM, your CEL issues will go away.
hmm thats interesting, yes im not running the edm rom. you will have to keep me posted on this.
the car starts up normally with the key, then when i turn the key off and take it out, the car remains running until i kill the fuel with the switch. Im not sure how the evo ecu controls ignition and whether or not the fuel pump needs to be hooked up to the ecu or not.
Yes, I didnt follow the correct procedure for the rewire which was dumb but I did a motor swap and had problems with the fuel pump so I ran a wire from the power wire to the battery with an inline fuse and a switch right at my knee. It worked well with the eclipse ecu even though its not "safe" Im not worried about that, Im worried about its function.
All this though doesnt explain why I still have spark and why the turbo time stays on with the key out of the ignition. The car should shut down and the fuel pump stay on like it used to correct?
So how much of the stock wiring did you use? Did you utilize the stock relay?
Better yet, is the pump completely isolated on it's own hardwired circuit? If it's not, the issue might be a common feed or ground in the new ECU. The power closing the pump relay may be a trigger for another internal relay in the ECU responsible for activating the ignition. Sounds like maybe a safety feature, as in perhaps if the ignition fails completely the pump shuts down or vise-verse.
So how much of the stock wiring did you use? Did you utilize the stock relay?
Better yet, is the pump completely isolated on it's own hardwired circuit? If it's not, the issue might be a common feed or ground in the new ECU. The power closing the pump relay may be a trigger for another internal relay in the ECU responsible for activating the ignition. Sounds like maybe a safety feature, as in perhaps if the ignition fails completely the pump shuts down or vise-verse.
Yes the pump is entirely on its own circuit, none of the old wiring is used at all. Im not sure if using the stock relay and such will fix the wiring or not.
hmm thats interesting, yes im not running the edm rom. you will have to keep me posted on this.
the car starts up normally with the key, then when i turn the key off and take it out, the car remains running until i kill the fuel with the switch. Im not sure how the evo ecu controls ignition and whether or not the fuel pump needs to be hooked up to the ecu or not.
That is very interesting. I really have no clue what could be causing that. Has to be a wrong connection somewhere?
Well I know that with the original 2g turbo ecu the car worked properly, the only pins changed as you know are for a/c and fuel pump relay. So I'm not sure how its possible since the ignition wasnt touched. I could just kill the motor by turning off the pump but I have to see if power still remains at the ecu after the car stalls. This whole thing has me completly puzzled
well its not really a big deal, I dont have A/C so the pins dont need to be changed I dont think. Only the fuel pump relay maybe. That might be a good idea to see if its something outside of ecu wiring/problem. Ill try it tomorrow
Well found out a few things from some of the guys on EvoM:
1) The EDM rom doesnt pick up on the crank/cam sensor malfunction because it simply doesnt have a check for it. So it doesnt contribute to any problems.
2) The EDM obviously already has all the emission checks turned off so the need to disable them(if needed) is not needed like in the USDM roms.
3) I found that when my ignition is in the "off" position my ecu/SAFC (still installed from last setup) remains on until I shut off the fuel. after the engine shuts down the ecu turns off the usual ~5-6sec. after. This leads me to believe that the ecu needs the fuel pump to be hooked into it to properly shut the car off. To save myself some trouble and work I might leave it the way it is and shut it down with the fuel pump since it must be shut off before I exit the car anyways.
Hopefully some of this helps people and goodluck to the ones performing the swap
Anyone here using this along with stock evo injectors? Im trying to figure out exactly what else i need to change to get this to work properly. I know the injector scaling doesn't need to be changed to 450, but im not sure about the maf scaling. That is unless that only applies to the maf and not injector scaling. OH and anyone have any issues trying to get the car to idle?
I emailed Colby from OpenEcu (he's the guy that does most of the development on the EcuFlash program and functionality) back in january of '08. I asked him if he planed on supporting the H8 processor (98,99 2G ECUs) anytime soon. He responded about a week later, telling me that he has been working on making EcuFlash work with the 98/99 2G ECUs, but hasn't quite cracked it yet. I anxiously waited a few months to see if he would come out with a version that would work with my 99 2G ECU. After about 6 months with no other replies, I gave up hope and started looking into the Evo8 ECU swap. As most of you know, I have it working flawlessly now.
A few days ago (almost a full year later), Colby responds telling me that he has cracked the H8 and there is a beta version of EcuFlash that can read and reflash our 98/99 2G ECUs! I'm very pleased that he figured it out...I just wish it would've happened before i did all this evo8 stuff.
So, if you guys want to be patient, it looks like there will be a release version of EcuFlash that can flash some 2G ECUs out soon. Of course, no idea how long "soon" is....
Good to know. Hopefully that comes out soon. Wouldn't have helped me with my unflashable stock 97 ECU, but still it will provide a nice alternative to other tuning options for those owners.
I just bought an '03 Evo VIII ECU for the swap and would love to be able to call on some other DSMers for EcuFlash help once I get comfortable enough with the interface to start manipulating the ECU.
To those that have done the swap already, did you guys use the harness Mach V sells? What about the cable you're using? Since the openport 2.0 cable doesn't work and the tactrix 1.3 is no longer available, are you guys using the EvoScan cable and an older version of EcuFlash? -The EvoScan cable apparently doesn't work with some of the newer versions of EcuFlash...
I have an evoscan cable and can't get the damn thing to connect. I have tried a bunch of different versions of ecuflash, with cracks, and ecu unlocker.....no dice.
Thats awesome. I almost sold all my plastic case ecus on ebay, glad I didn't.
You have any idea which beta version has H8 support? I'd like to start playing with it to get a definition file made for us.
Quote:
Originally Posted by GSXDNA
You guys are not going to believe this......
I emailed Colby from OpenEcu (he's the guy that does most of the development on the EcuFlash program and functionality) back in january of '08. I asked him if he planed on supporting the H8 processor (98,99 2G ECUs) anytime soon. He responded about a week later, telling me that he has been working on making EcuFlash work with the 98/99 2G ECUs, but hasn't quite cracked it yet. I anxiously waited a few months to see if he would come out with a version that would work with my 99 2G ECU. After about 6 months with no other replies, I gave up hope and started looking into the Evo8 ECU swap. As most of you know, I have it working flawlessly now.
A few days ago (almost a full year later), Colby responds telling me that he has cracked the H8 and there is a beta version of EcuFlash that can read and reflash our 98/99 2G ECUs! I'm very pleased that he figured it out...I just wish it would've happened before i did all this evo8 stuff.
So, if you guys want to be patient, it looks like there will be a release version of EcuFlash that can flash some 2G ECUs out soon. Of course, no idea how long "soon" is....
I have an evoscan cable and can't get the damn thing to connect. I have tried a bunch of different versions of ecuflash, with cracks, and ecu unlocker.....no dice.
Is this in the 1G in your avatar? Does the car start/run okay on the swapped ECU?
So, the evoscan cable won't even connect to datalog? Seriously is up with tactrix discontinuing the 1.3 cable when their new 2.0 cable is so effin' worthless... and nobody ever gets rid of those old cables either. I wonder how long it'll be before some enterprising individual out there starts counterfieting the old tactrix 1.3 cables.
edit: Nevermind, went back and read the posts you made on the last page. Having the options set for 40 posts per page screws with me sometimes.
I have an evoscan cable and can't get the damn thing to connect. I have tried a bunch of different versions of ecuflash, with cracks, and ecu unlocker.....no dice.
Did you install the correct drivers for the usb cable? If your using evoscan does that connect?
[QUOTE=GSXDNA;151727076]Concerning your issue with your codes for crankshaft sensor positioning, i find that very interesting. I have two ROMs I am playing with. One is an from an EDM Evo 8. That ROM throws no codes at all, and works flawlessly. I am also trying to get a USDM Evo 8 ROM with the Tephra Mods to work. When I flash the USDM ROM, I throw similar codes. Haven't figured it out yet. I bet if you use my EDM ROM, your CEL issues will go away.
QUOTE]
Just got me car running with the EVO8 ecu i purchased. took me a while to figure out how to disable the immobilizer code but i got it. i have a 96GST and the first thing i had to do was switch plug wires to get the firing order correct, and as soon as it fired up i got P0335 and P0340 for the crankshaft position sensor. so is it safe to assume that the 9927 roms will flash to an ecu that originally had a 9417 rom in it. if so i will give it a try to see if i get the codes again.
clockworktoy, my car has the evo8 injectors in it however i am using a MAFT gen 2 in it so we will see if there will be a need to mess with the injectors, but i don't see why there would be...
You missed what I meant. The Evoscan cable is not the same as the Tactrix 1.3 cable. Most users who try to flash using the EvoScan cable are unable to do so with the latest versions of EcuFlash.
I know where thje fuses are located, i was just seeing if anyone knew if any of the fuses could cause the car to not shutdown with the ignition key
What the hell do you have a switch on your fuel pump for? Clearly that's the problem. It sounds like you wired in a secondary ignition switch. Obviously you would have to turn them both off to shut down the engine. 
