Evo 8 ECU In 2g Works!!

[saechao04]

Does it matter which evo 8 ecu it is? MR, RS, VII or are they all the same?

 

[johnnyboy55]

no but it has to be an evo 8 ecu due to mivec in 9s. The programming is the same basically between mr, rs and gsr or whatever.. Some ecu include ic sprayer in certain years i believe before 05..

 

[clockworktoy]

The ecu doesn't matter like stated above, and the original poster should update the first post with the added information that we now know
1)disconnect pin 58 from the ecu as stated by mike96 to fix the tach problem.
2)if you are using stock injectors the scaling/latency posted in the first page might not work.
3)factory 2step can be used (and changed via ecuflash) by cutting the wire coming from pin 43 on the ecu and running/tapping a wire to the black/red on the cruise control switch.

Anyone figure out a way to connect a wideband to the ecu like with dsmlink? Ive found a few threads on evolutionM but i was wondering if anyone has done any experimentation with this so far. Because its kind of annoying using a separate harness to log the afr's.

Oh and has anyone had a CEL for "idle system malfuntion"? I only get this with the evo ecu, but not with my original ecu.

 

[mike96]

yes. and yes.
yes, i have been plagued with the idle CEL P0505 and one for Generator FR terminal circuit malfunction P0622 i get them at random with both the 9653 and 9927 Rom's.
and
yes, i have been messing with hooking up my wide-band to the stock ecu, however i an running a tech-edge WB with a simulated narrow band so i have it hooked up to the input for the rear 02 and am logging it that way. i haven't tried doing the mod to hook the 0 - 5v directly to the ecu yet though

 

[PieEyedPiper]

The ecu doesn't matter like stated above, and the original poster should update the first post with the added information that we now know

Just to be certain, this will also work with a JDM evo 8 GSR ecu? As well as any EDM ECU?
Just want to make sure that the roms will be compatible with all flavors of the ecu, USDM or otherwise.

 

[mike96]

Just to be certain, this will also work with a JDM evo 8 GSR ecu? As well as any EDM ECU?
Just want to make sure that the roms will be compatible with all flavors of the ecu, USDM or otherwise.

right now i am running a USDM ECU with an EVO8 AUS-SA rom flashed to it. this is what i have found so far.

94170008 - 0015 run with CEL for CAM/Crank sensor
90550001 runs but for some reason i got cel for o2 sensor and car ran like crap
96530006 runs fine

these ran for me as well but i cant remember one of them gave me a CEL for the same as 9417 ROMs and the other gave a CEL for o2 sensor i just cant remember which one did which
96260007 - 0009
99270000
and there is one other rom i tried but i cant remember which one it was of the top of my head but i had no problems with it, the only reason i am running the 9653 rom right now is i have a tephra mod rom installed.

 

[johnnyboy55]

jdm ecus should run but they are not made to run with usdm cars so u will most likely get as he said check engine lights or similar.. U should try to get usdm because they are getting good support for ecuflash on evom and have the majority of the patches.. ntls, valet mode, knock flash, and soon SD.

 

[GSXDNA]

jdm ecus should run but they are not made to run with usdm cars so u will most likely get as he said check engine lights or similar.. U should try to get usdm because they are getting good support for ecuflash on evom and have the majority of the patches.. ntls, valet mode, knock flash, and soon SD.

But a USDM Rom is going to throw codes due to the crankshaft positioning sensor. I have both an EDM Rom and a JDM Rom working with no CELs. A USDM Rom would be nice for the tephra mods, but I can live with the JDM Rom for now.

 

[byebyev8]

Yep stock 2g maf with stock injectors. I have some evo injectors that i would like to use but im still trying to figure out how to do this.

Since the 2g mas flows 20% less air than the evo mas you should be just about right with the stock injectors. With the 560's I"d think you'd have to lean it out 20% more.

DO you guys think its worth it to run a evo ecu instead of the 2g eprom?

 

[mike96]

the 9653 rom is an EDM rom with the tephra patch done to it. seems to run pretty good but i dont have everything hooked up yet like a clutch switch which the 9653 rom needs for the stationary rev limit and the NLTS.

 

[delta448]

Just an FYI, I found what appears to be the latency values for the stock 450cc injectors.

I'm throwing this out there in hopes that someone can confirm this is correct for me and any others who aren't upgrading injectors at the same time as the ecu swap.

Stock injector latency settings for 450cc injectors on a 2g DSM:
18.7v = .456
16.35v = .552
14.0v = .648
11.68v = .840
9.34v = 1.152
7.0v = 2.112
4.7v = 4.056

Also, according to some of the 3G guys using EcuFlash who've done a turbo and evo ecu install, the 450cc injectors should be scaled globally at 412.

 

[clockworktoy]

Just to be certain, this will also work with a JDM evo 8 GSR ecu? As well as any EDM ECU?
Just want to make sure that the roms will be compatible with all flavors of the ecu, USDM or otherwise.

Yes it will, the USDM and EDM ecu's use 4 plugs while the JDM one uses 3. But i think it would be easier to find a USDM evo ecu since i see them pop up on ebay every once in a while.

 

[clockworktoy]

right now i am running a USDM ECU with an EVO8 AUS-SA rom flashed to it. this is what i have found so far.

94170008 - 0015 run with CEL for CAM/Crank sensor
90550001 runs but for some reason i got cel for o2 sensor and car ran like crap
96530006 runs fine

these ran for me as well but i cant remember one of them gave me a CEL for the same as 9417 ROMs and the other gave a CEL for o2 sensor i just cant remember which one did which
96260007 - 0009
99270000
and there is one other rom i tried but i cant remember which one it was of the top of my head but i had no problems with it, the only reason i am running the 9653 rom right now is i have a tephra mod rom installed.

Hey can you send me a link to where i may be able to find the 96530006 rom? Or if you could send it to me that would be great.

 

[delta448]

I would appreciate that ROM as well. Maybe someone could upload it to Rapidshare's website and link it in here for everyone else too.

 

[jjgrizz73]

99270000 gives me no CEL codes and runs great...

 

[mike96]

i don't remember exactly where i got a factory ROM from, if it came with ecu flash or i got it from either aktivematrix.com or openecu.org. but you can get the modded ROM from this post TephraMOD V5.10 - evolutionm.net . be sure you get the updated XML for that ROM off of pg 32 second to the last post on the page, even if you don't use the modded ROM it has the correct addresses for some of the base maps.

also as a side note for the installation notes at the beginning of the page..... if installing on a 96 - 97 eclipse be sure to switch injectors 1 and 4 with 2 and 3. my car had a nasty hesitation at cruse and a problem with stuttering under full load around 4000 rpm and up. i haven't had a chance to check the full load but after switching the injectors the hesitation at cruse went away..... i will get back more on that when i get a chance

edit... also i need to add, the 9653 rom will need a clutch switch for the stationary rev limit to work and NLTS if using tephra mod needs it also.....

 

[byebyev8]

Did they ever come out with ecu flash for the 98/99 ecu?

 

[clockworktoy]

i don't remember exactly where i got a factory ROM from, if it came with ecu flash or i got it from either aktivematrix.com or openecu.org. but you can get the modded ROM from this post TephraMOD V5.10 - evolutionm.net . be sure you get the updated XML for that ROM off of pg 32 second to the last post on the page, even if you don't use the modded ROM it has the correct addresses for some of the base maps.

also as a side note for the installation notes at the beginning of the page..... if installing on a 96 - 97 eclipse be sure to switch injectors 1 and 4 with 2 and 3. my car had a nasty hesitation at cruse and a problem with stuttering under full load around 4000 rpm and up. i haven't had a chance to check the full load but after switching the injectors the hesitation at cruse went away..... i will get back more on that when i get a chance

edit... also i need to add, the 9653 rom will need a clutch switch for the stationary rev limit to work and NLTS if using tephra mod needs it also.....

Thanks! Im going to try out this rom and see if my cel goes away.

 

[the_mork]

Did they ever come out with ecu flash for the 98/99 ecu?

There is a separate thread for this.

The short answer is no.

The long answer is that supposedly it should work if you can create enough voltage to put the ecu into reflash mode but since this voltage is not created internally there isn't a widely available option that will get you into reflashing mode and even if you did manage to get it that far there has been limited development of full ROMs for 98/99 ecus. Some people are working on it though so we might see something soon.

At least that is the way that I understand it.

 

[mike96]

factory 2step can be used (and changed via ecuflash) by cutting the wire coming from pin 43 on the ecu and running/tapping a wire to the black/red on the cruise control switch.

so basically your using the cruse control switch as a clutch switch?????

also with the 9653 rom i do still get the idle malfunction and generator cel but if i clear it, or wait a day or two it usually goes away..... comes on about every weak or two... but give it a shot seems to very from rom to rom with my car may be you wont get it.

 

[clockworktoy]

99270000 gives me no CEL codes and runs great...

Thats the rom im currently using and it gives me the idle system malfunction CEL i don't know why.

so basically your using the cruse control switch as a clutch switch?????

also with the 9653 rom i do still get the idle malfunction and generator cel but if i clear it, or wait a day or two it usually goes away..... comes on about every weak or two... but give it a shot seems to very from rom to rom with my car may be you wont get it.

Yes im using the cruise control switch, and im going to try the 9653 rom tomorrow and see what cels i get if any.

 

[delta448]

also as a side note for the installation notes at the beginning of the page..... if installing on a 96 - 97 eclipse be sure to switch injectors 1 and 4 with 2 and 3.

Don't you mean on 95-96 years?
Pretty sure the 97+ have a CAS signal like the Evos. It should be the same as doing the CAS inversion / injector plug swap on the 97+ cars the same way as when we would install the 95 ECU for DSMLink or one of Keydiver's chips.




EDIT:

http://www.dsmchips.com/2g.html

8. Cam/CAS Inversion - This feature is necessary when using the 1995 ECU on a 1997+ car, or if you have done a 6-bolt swap. The 97+ and 1G sensors put out an inverted CAS signal, which changes the injector firing order. This CAS Inversion fixes the injector issue, but you still need to swap plug wires 1&2, and 3&4 if you have a 1997+ car, or have done a 1G 6-bolt swap.

 

[mike96]

could be, i am not entirely positive on the years. i thought it the 95 had the cam/crank sensor on the head like the first gen cars, the 96 - 97 had separate cam and crank sensors both at the front of the block, and the 98 - 99 were separate only the crank was on the front of the block and the cam was on the back of the head, like the EVO. i know i have a 96 and had to swap plugs to get it to run and the injectors to get it to run smoothly.

 

[clockworktoy]

could be, i am not entirely positive on the years. i thought it the 95 had the cam/crank sensor on the head like the first gen cars, the 96 - 97 had separate cam and crank sensors both at the front of the block, and the 98 - 99 were separate only the crank was on the front of the block and the cam was on the back of the head, like the EVO. i know i have a 96 and had to swap plugs to get it to run and the injectors to get it to run smoothly.

95/96's have the cam sensor on the crank pulley side while 97-99 all had them on the opposite side. The crank sensor is in the same position for all models.

 

[mike96]

Clockwork,and anyone else that might be plagued with a P0501 and/or P0622. just a little "info you" i am getting a cell for O2 sensor 2 heater circuit every time i start the car but it seems to be accompanied with Generator FR terminal circuit malfunction DTC and an idle DTC. i am assuming the o2 DTC is the one that is tripping the CEL because it just started coming on the other day but every time i reed the ecu the other two pop up. so i got to looking at the FSM for the EVO and i think i might have found something that may be contributing to these two codes. i pulled this from the EVO's FSM

CIRCUIT OPERATION
• The ECM (terminal 41) apply a battery positive
voltage into the generator FR terminal No. 4 via
resistance inside the unit.
.
TECHNICAL DESCRIPTION
• When the generator field coils are controlled, the
generator FR terminal inputs signal to the ECM.
• The ECM detects the generator output with the
input signal, and controls the idle air control
motor according to the generator output..
DTC SET CONDITIONS
Check Conditions
• Engine speed is higher than 50 r/min.
Judgement Criteria
• Input voltage from the generator FR terminal has
continued to be approximately battery positive
voltage for 20 seconds.
.
TROUBLESHOOTING HINTS (The most likely
causes for this code to be set area: )
• Open circuit in generator FR terminal circuit.
• ECM failed.

so i am thinking maybe,,, doesn't the eclipse have an alternator that is rated a bit lower than the EVO's and from reading the technical description and check conditions i would think if you get one you would more than likely get the other. so i am going to do a little more research and testing to see what i come up with....