My questions is about tuning the EVO 8 ecu. What will need to be changed to make this run other than the wiring. Will I beable to send this to RRE, and they could send it back ready to run, or could any EVO tuning people beable to flash the EVO ecu.
The wiring is pretty much it, besides purchasing the ECU. Once in you can run EcuFlash and other evo tools to flash your ecu. EcuFlash is a great tuning program , I am in the process of putting in an Evo 8 ecu right now. Thank you very much to the OP and RRE
I have been following this thread and Im very interested in doing this ecu swap my only concern is my car is a 2g automatic how would this swap effect the TCU or would I have to use an aftermarket trans controler from someone like IPT
The transmission is controlled by the tcu, not the ecu.
The 5spd & auto ECU's are the same in DSMs, except for the 1g's slight tuning difference such as for the different injectors and fuel pressure.
I understand the tcu controls the trans but the tcu gets info from the ecu to control the trans and because the Evo8 ecu is a manual trans ecu how will that effect the operation of the tcu
This is my first Automatic DSM so Im just trying to figure out what will and won't work as far as ECU swaping in reguards to the tcu
I finally fixed my a/c temp control problems. The temperature control cable that connects to the temperature switch on the dash is about 1-2 inches away from where the ECU sits. Since it's so tight in there, I must have knocked the cable loose when I was swapping ECUs. So, be careful of that if you're attempting this.
I am now considering this project complete, as everything is working perfectly. I updated the initial post on the first page with some graphs and screenshots of the EcuFlash program.
Just got my new clutch a few days ago, and I'm going to order some larger injectors soon. Then I can crank the boost up
Thank you for the very detailed info you edited back into your first post.
You should definitely make that post into a new tech article. Awesome job, thanks for being the guinea pig for us!
Thank you for the very detailed info you edited back into your first post.
You should definitely make that post into a new tech article. Awesome job, thanks for being the guinea pig for us!
Yes, Thanks for all of the hard work and your willingness to share the info (Unlike some people). I guess I will have to put away my bat and pull out the wallet! : )
Ok I have a few questions on your pin out you have pin 78 empty 2Gs don't use that pin but the EVO 8 ECU has pin 78 for the knock sensor imput so is the evo8 ecu not getting a knock signal with your set up? Also pin 43 on 2g is eng/trans toqure reduction request signal 2 witch becomes clutch position input signal on evo8 ecu. Looking at the 2G pin out I see pin 7 (empty on evo8 ecu) is toqure reduction request signal 1 and pin 43 is toqure reduction request signal 2 seeing as how the 2G knock sensor has 2 wires could 1 of these 2 wires need to be hooked up to pin 78 for knock sensor input. toqure reduction request signal sounds like eng. is knocking pull timming to me and thats what a knock sensor does ? just a thought.
I plan to do this swap very soon as I have a good friend with an evo8 who has an extra ecu hes going to give me as in free my car is a 2G automatic so Im going to delete pin 91 witch is used for park/netrual switch only used on automatic cars. he also has everything needed to do the reflase and does all his own tunning on his Evo.
Thanks for the info in your write-up as it helped me decide to do this swap I hope to get this ECU swap to work in my Automatic car with in the next few weeks
Ok I have a few questions on your pin out you have pin 78 empty 2Gs don't use that pin but the EVO 8 ECU has pin 78 for the knock sensor imput so is the evo8 ecu not getting a knock signal with your set up? Also pin 43 on 2g is eng/trans toqure reduction request signal 2 witch becomes clutch position input signal on evo8 ecu. Looking at the 2G pin out I see pin 7 (empty on evo8 ecu) is toqure reduction request signal 1 and pin 43 is toqure reduction request signal 2 seeing as how the 2G knock sensor has 2 wires could 1 of these 2 wires need to be hooked up to pin 78 for knock sensor input. toqure reduction request signal sounds like eng. is knocking pull timming to me and thats what a knock sensor does ? just a thought.
I plan to do this swap very soon as I have a good friend with an evo8 who has an extra ecu hes going to give me as in free my car is a 2G automatic so Im going to delete pin 91 witch is used for park/netrual switch only used on automatic cars. he also has everything needed to do the reflase and does all his own tunning on his Evo.
Thanks for the info in your write-up as it helped me decide to do this swap I hope to get this ECU swap to work in my Automatic car with in the next few weeks
Pin 78 is not empty. Pin 87 is empty. 78 is the knock sensor for both ECUs. I haven't updated the 2G ECU for the missing pin labels in my post yet to reflect this. I have logged and tuned with this configuration, and the knock sensor is definitely working properly. I think that answers your other questions too.
When I hooked an AEM EMS up to an automatic car, I let the stock ECU control everything but the fuel and timing - which I let the EMS control.
Pin 78 is not empty. Pin 87 is empty. 78 is the knock sensor for both ECUs. I haven't updated the 2G ECU for the missing pin labels in my post yet to reflect this. I have logged and tuned with this configuration, and the knock sensor is definitely working properly. I think that answers your other questions too.
When I hooked an AEM EMS up to an automatic car, I let the stock ECU control everything but the fuel and timing - which I let the EMS control.
congrats gsxdna -- i was telling u i didnt think it was the ecu hahaha good job though
Thanks again for all your help man. It's a lonely place to be when you're having a problem with a project that few (if any) have tried.
The temperature controls work fine now, but the blower motor is still cutting out. Some days it will work, and some days it won't. Definitely not an ECU issue though. Probably a bad relay or a faulty switch. I may just have the dealer fix it when I go to have my new clutch put in.
While looking for an ecu for my car I ran into another person asking about evo8 ecus for an eclipse and he wanted specifically an 03 ecu so that he didn't have to deal with ACD.
I was going to ask about it here but I did some quick searching instead.
ACD is Active Center Differential. Obviously something we don't have.
The question that remains is whether or not we can use an ecu that has ACD or if ACD can be flashed into nothingness.
I'm pretty sure the engine ECU does not control the ACD. I believe the ACD has its own computer. Any EVO 8 ECU should be fine. I don't know about the 9, though, since it has MIVEC.
Is anyone familiar with a TurboXS Utec? The guy that I'm buying my ecu from says that he'll include one for pretty cheap and I just wondered if it was worthwhile on our cars. So far it seems like it wouldn't be a whole lot of improvement but the price seems right. It offers 5 selectable maps, water/meth/nitrous control. Dedicated injector and timing control ie: 10* BTDC == 10*BTDC and not "BASE TIMING"+"ADVANCE"+/-"CORRECTION VALUE". I'm just not sure what value that would have in the dsm though since most of that is based on also adjusting boost at the same time.
Speaking of boost, have we considered the value of using an evo boost controller? I may be mistaken but it sounds like they have much more variability than our BCSs and could actually turn into a useful tool to replace EBCs
I'm pretty sure the engine ECU does not control the ACD. I believe the ACD has its own computer. Any EVO 8 ECU should be fine. I don't know about the 9, though, since it has MIVEC.
I started to put my EVO ECU in today. I have the extension harness to make it easier (or so I thought). I swapped pins 8 & 22, according to the extension harness numbering, but noticed the pins aren't located in the same place as the pinout on the first page. I think I need to ignore the harness numbering and go with the pinout numbering. Can someone please take a look at the pic below and let me know? On the left is the harness with pins 8 & 22 identified. On the right is the EVO ECU.
Alright so I should have an ecu on its way. I just realized now that I probably don't have a flash port (the car is put away for the winter so it isn't terribly easy to physically check). Does anyone know how easy it is to wire one in or can you point me in the direction of where to find the information?
A lot of DSMers will probably need this information in the near future.
Alright so I should have an ecu on its way. I just realized now that I probably don't have a flash port (the car is put away for the winter so it isn't terribly easy to physically check). Does anyone know how easy it is to wire one in or can you point me in the direction of where to find the information?
A lot of DSMers will probably need this information in the near future.
There is only one wire used for the flash port, so its easy to add.
The right way to do it would be to get a pin tool and add a pin to your ecu harness plug.
But you can just stuff a wire in the harness plug after its plugged in to the ecu.
Sorry I've been MIA for a while...been terribly busy.
So yeah, this is the only tricky part about doing this swap. When you introduce a harness/multiple ECUs into the picture, the pinout perspective can be a little difficult to grasp at first. It is very hard to explain in words, but I will try.
IF your harness is the same as mine (please post a few pics so I can see how the wires run), here is what I would suggest:
Don't even look at your EVO ECU. Put it aside, and just look at the harness and the two pinouts I posted on page 1 of this post.
First, lay the harness out on as if you were about to plug the harness into the connectors in your eclipse. This end is your reference end. This is the end that corresponds to the pinouts I have on page one. Now, put your finger on pin 14 (the bottom-most right pin). Trace that wire from the end that plugs into your eclipse to the end that will plug into the EVO ECU. Wherever that pin connects to, that is also pin 14 on the evo connectors, which will also be the bottom-most right pin on the EVO connectors as long as you are viewing the harness with the correct perspective.
Here's how I was able to gain the proper perspective:
With your left hand, hold up the eclipse end of the harness farther away from you so that pin 14 is bottom-most right. Then, with your right hand, hold the evo end of the harness closer to you, so that all the wires are a straight line from end to end. This should make it so that you are viewing the eclipse end of the harness from the back (where wires are comming out) and the evo end of the harness is being viewed from the front (where no wires are comming out, but where the plugs would go into the evo ECU). Now, trace pin 14 from eclipse end to pin 14 on the evo end, and apply the pinout logic viewing the eclipse end from the back and the evo end from the front. Everything should make sense now.
This is probabaly why the labels on your harness appear to not mesh when you view bot ECUs separately. This is also why the guy at RRE accidentally hooked my 02 sensor up wrong.
Sorry for the lengthy explaination. I hope it didn't confuse you further. If you are still having trouble with this, let me know and I can try to make you a diagram. This is the best I can offer with a textual discription.
getting ready to do this swap sometime in the next week or two. My buddy has an Evo 8 that he flashes himself with ecuflash, he is helping me set this up and giving me a close tune of course I will have to go over this again in the spring. This whole thing just has me baffled of how easy it is to do. Cant thank you guys enough for attempting this, I never even thought about it. Have you flashed and ran your car since the install?
getting ready to do this swap sometime in the next week or two. My buddy has an Evo 8 that he flashes himself with ecuflash, he is helping me set this up and giving me a close tune of course I will have to go over this again in the spring. This whole thing just has me baffled of how easy it is to do. Cant thank you guys enough for attempting this, I never even thought about it. Have you flashed and ran your car since the install?
I've probably flashed my ECU 20+ times since the install. Works fantastic. No issues whatsoever.
I am also baffled that more people haven't been doing this. I know I'm not the first person to think of it.
