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EVOscan Blackbox ECU from 98-99 DSM install to my 96 GST

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ChristianEclipseAuto

5+ Year Contributor
137
9
Apr 6, 2018
Roskilde, Europe
Hi. I did try find answers on this. But I am not getting clear answers.

I got a black box ECU in my purchase of my 2G Eclipse DSM (jap. Version) GS-T 96/97. (Very rare version) Stock turbo setup, inverted CAS.

My questions:
Can I just install the black box ECU?
Do I have to switch some sparkplug wires order as somebody say?
I have no idea if the ECU is tuned already so is it save just to install ?
Hopefully I can get a guideline from all you guys out there
 
you gotta swap the wires

so standing in front of the car and looking at the coils. you just swap the wires on one coil with the wires on the other coil.

x x---------->
[oo] [oo]
<-----------x x

Then for the injector wires
some people don't swap them because the car will run just by swapping the plug wires.
but the car will run better/smoother if you do

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https://www.roadraceengineering.com/1gcasin2g95-96M2.htm
 

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Thanks alot. 😊 So it is possible with my 96 inverted CAS.
But I cant really understand the injectors wires :/ all these Numbers, What is the meaning by and where do i find this ? Sry for askin Maybe stupid. I am not afraid to get my hands dirty working on cars, But if i dont ask, i dont learn and i dont want to screw up the engine i just Got build from the scratch😅

And is it safe just to install ? I dont know How it was used in the past ? (I have no tunings ecu experiance either) 😅
 
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well i would think that most of the blackbox ECUs out there have not been fuct with and have the factory programming.

if you don't have the hardware and software you need to connect to the ecu, get it first.
Otherwise its almost pointless to swap the current ecu with the BlkBox.
Since it will run the exact same as your current ecu (stock programming).
Or if its been flashed it might f*** your shit up, it might not, so its best
to just reflash it back to stock before using it.

with the wire swap shit, check out this link as it has everything you want to know and maybe more



now me personally, on my own vehicle, i would be thinking:

if i swapped the spark plug wires and swapped in the blackbox ecu,
chances are the car will start, run, drive.


and then i would have to try it to see if i was right.
 
Thank you so much.

I am getting the car tuned next year, with new turbo, ic, injectors ect. I just had the whole engine rebuild with new componants, so that is why I ask if I just could installed it.

But I Will see where I Can find the tactrix cable and software. That must have been answered in these Forums before. Thanks for your kindness and I will pm you when winter is over if I have the success to swap it 😅
 
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If a USDM DSM ECU on a Japanese Eclipse, it may be a different story. Maybe you would need to work more. So you should confirm if it would work or not before buying the tactrix, not to waste your money. Keep in mind that Japanese Eclipse have a different emission control from the US DSM. At least, EGR, MDP, Rear O2 sensor are different.

I can not be 100% sure how exactly different between the US and Japanese ECU since I have never done it by myself, but I remember that before a person in Japan reported me that he couldn't run a US ECU in his Japanese 2G GST. He told me that the exhaust high temp warning light (which US DSM don't have) comes up in a while after starting the engine and idle gets unstable and stops rev up. What he described sounds like the ignition timing was pulled a lot to protect the engine.

Japanese Eclipse have an exhaust high temp sensor instead of rear O2 sensor. In case if like what I said above would happen with the black box on your Eclipse, I guess that's the one you would need to deal with.

I could be wrong, but just for your information.
 
Thanks. Very good info 😅

Well i took out the old ecu and it seems to be the same as all the others from 95-96 🤷🏻‍♂️ Looks exact the same.

I dont have any rear O2 sensor. Just the one there is sitting on the O2 housing on the manifold.

My idle is a bit low (its an automatic) 800-900. But it fires up and starts after one turn, But does not goes like up til 1500-1800 and then falls Down. It just starts ans stays around 800-900 rpm. I dont know if that is normal or not.

The engine is rebuild by a pro, so the engine is fresh. I have now taking all pipes off and cleaned ic and throttlebody. So soon I Will check if it runs better in idle.
 
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i took out the Old ecu and it seems to be the same as all the others from 95-96 🤷🏻‍♂️ Looks exact the same.
Yes, the Japanese ECU has the same plugs and pinout is "almost" the same as USDM. But as I mentioned above that a guy in Japan reported that he couldn't run a US ECU on his Japanese Eclipse. I have a Japanese ECU and have no problem to run it on my 2g though. And Japanese Eclipse may not have EGR solenoid wire and MDP sensor wire from ECU plugs, so if you want to use those as input/output, you would have to wire yourself.

I dont have any rear O2 sensor. Just the one there is sitting on the O2 housing on the manifold.
If your is Japanese, you should have a temp sensor on catalytic converter.
 
三菱エクリプス

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i tried to find the pinout for the jdm ecu.
i even tried searching using the ecu and harness part numbers.
this is as close to finding the jdm wiring info as i could find.
 

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I wish i could japanese 🙈 Well imma take a look at it. Else I have to go another route with ecu tuning. But now I just had that Blackbox in hand so It would make my life easy 😅 But I guess not hehe that partnumber 14927 is that for the exhaust High tempsensor ? And where is it located ? Does usdm not have that ?
 
Where do I find these EGR sensor and MDP sensor ?
You don't need those to run.

Guess i have to look for pin 6 and 73
Pin 6 and 73 are the ones what I was talking about above, that your harness probably don't have wire for those ECU pins. But I don't know all Japanese Eclipse, perhaps some have a different harness. Besides that, one wire from the exhaust high temp sensor should go to some pin on ECU that the US ECU doesn't have. That's the one you should trace which pin it goes to on ECU or maybe just disconnect the sensor would work with US ECU, I am not sure about that. Please report back when you find something, I am curious.

i tried to find the pinout for the jdm ecu.
i even tried searching using the ecu and harness part numbers.
this is as close to finding the jdm wiring info as i could find.
Yeah that's the sensor and there is FSM for JDM Eclipse. I learned DSM in North America, so I never bought it though.
Before I asked the guy in Japan to confirm if his 2g gst has wire in the harness for ECU pin #6 and #73 and he said no there is no wire in the harness for those pins and it's empty in the plug. So I believe there is some difference.

where is it located ? Does usdm not have that ?
On catalytic converter as I said above and No.
 
I Will take a look at 6 and 73 if i have pins (wires) there. If not then I need to figure out How to route it.
Those pins may not be a big deal for running even if you don't have (It's just you may have less input/output for something that you would want to install later). I think you can make it by yourself if you need.
I guess the two wires from the high temp sensor are the ones you should know which pin they go to. I am not sure if those wires are hooked up to ECU like the rear O2 sensor or differently.

IIRC, the guy in Japan told me something like, the first startup is no problem but after 20-30min of idle time or driving, the high temp light always comes up and then the engine would start to stall, even if he resets the ECU, it keeps doing the same.
 
Do i need those
Japanese Eclipse may not have EGR solenoid wire and MDP sensor wire from ECU plugs, so if you want to use those as input/output, you would have to wire yourself.
To run, no. But you may want to have those when you want to install some additional sensors to log, or to control somothing such as nitrous solenoid, wamter/methanol injection solenoid etc etc.

where do i find the High tempeture sensor pin ?
That's the one you should trace which pin it goes to on ECU
Trace the wires from the temp sensor plug.
 
I am just getting the car tuned with 750cc and 16g setup ect. No nitrious.

Where are the temp sensor plug, on my cat converter?

I hope I Can use this blackbox ecu now😕
 
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Where are the temp sensor plug, on my cat converter ?
I don't think so. Only the sensor is supposed to be on CAT. The plug should be around that. Just trace from the sensor or check under the car. If you don't see any plug, look for it somewhere under driver seat.
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I have found the plug. What do I then do with it ? Take it out when installing the blackbox ecu ? Or shall I something, run wire to a pin or. ? Sry for being little stupid, But you guys have so much experience than me🙏 I am very thankful

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My plan for the car is to make it run as Stock looking as possible due to danish rules. We are not even allowed to run open airfilter.

So i have a 16g setup ready to install with j-pipe to stock smic. It needs a tune and therefore i need another ecu 😬, so that is why i am hoping for this blackbox to work for me.
 

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My plan for the car is to make it run as Stock looking as possible due to danish rules. We are not even allowed to run open airfilter. So i have a 16g setup ready to install with j-pipe to Stock smic. It needs a Tune and therefore i need another ecu 😬 so that is why i am hoping for this blackbox to work for me.
Have you already run the black box on your Eclipse? If you don't see any issue, then you don't need to do anything. You have to check it first, before make any changes.

And if you want it stock-ish, I am wondering how come you are planning to swap the ECU, since the modifications are only a 16g w/ 750cc injectors. If I were you, I would also consider to go with the original ECU and some piggyback. Probably that can be your option, too.
 
No I have not tried to install the blackbox ecu yet. I heard that it was flashable for tuning and the one I have installed is not.

My goal is to run stock ish 😅 so you prefer for me to install the blackbox ecu with changing wires, and pins for injectors and see what happens ?
 
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You have to install the ECU with stock parts to see if it would work or not (You may need to change the spark plug cable ordering to fire up). But no need to change any wiring for ECU yet, you even don't know if it works or not. Or who knows maybe it would work just fine. Then if you see some issue, you would need to work for that. If you wouldn't see any issue like I mentioned above or so, then you wouldn't need to do anything.
 
Thanks, imma try do that. The car is in off session insurance and it is snowing in Denmark (cold) so i Will try this in the new year. Thanks for all your Help. Imma get back to you guys if there is any issues. 👍🏻😊
 
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