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EVO8 ECU now for 1G DSM > whos doing this?

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enash99

10+ Year Contributor
44
0
Sep 14, 2009
NPR, Florida
Reading on evolutionm.net i found a thread where they have rewired a connector to migrate an EVO 8 ECU into a 1G DSM. Now its in the 2G and i know some of the 1G guys on here have to be involved in this. Is this considered to be sucessfully completed for us meaning we can dump DSMlink or any other chip type mod for tuning our applications. I know you all are up to speed on the tuning ability of the EVO's and the WRX/STi's. Where you can reflash the EPROM that is on their native ECU. No need to replace the ECU with a stand alone or run a piggy back system. You can simply connect directly to the ECU pull off your ROM with ECUflash, then import your .BIN file into Enginuity and then adjust your map. I know all this info is a few months old now. I have used these programs for years tuning subies and a few EVO's. I will do a backflip off my roof if this truly comes to fruition. Has anyone on here been involved with this? Seems its a company out of Texas that is creating the interconnect from our wiring harness to the EVO ECU. If I can get the necessary plugs for both ends. I will get an EVO ECU and build the interconnect. I will donate my ECU to get this working. I want this bad!

Here is a link to the thread. Sry mods, not trying to publish another site here just linking to a resource of information.

Evo8 ECU in a 1G DSM in the works! - Page 12 - evolutionm.net
 
Has anyone tried this in an auto dsm?
I'm thinking about trying it.

I will be doing one over the winter. From my research I see no reason it won't work. Below is a link to a thread I started describing the project and how I have gotten it to work so far. If you have a specific question I check that thread more often and am able to provide better input.

How to: Evo 8 ECU into 1G DSM - EVOTech
 
Perhaps not in a 1g but several of us 2g guys are running autors with it. There really is no difference significant enough to notice.

I'm one of the others running the evo 8 ecu in a 2g. No problems relating to the transmission what so ever. The automatics have their own TCU. The only reason the TCU and the ECU "talk" is for trouble codes. There's also a "torque kickdown" pin on the 2g ecu. Not sure if it's on the 1g, but all it seemed to do was pull timing during brake boosting to spool the turbo and decrease torque until you let off the brake so the transmission didn't have to deal with as much force.
 
Thanks guys, I am going to get together with the locals and try to learn more about tuning with evo software before I jump in.
 
Anymore on this? I think I'm going to start picking up parts. I like this idea better than DSMLink. Plus I can sell off my old ECU and make some money back.
 
Ok fellas,

I recently bought my 92 Auto/AWD talon that has the E8 ECU swap done to it.

The car runs/drives/idles great but I have a CEL showing.

The person I bought the car from acquired it from a deadbeat customer(pill-head), who unfortunately had the swap done somewhere else so he's no help in this swap.
Does swapping out the ecu's alter the the functionality of the OBD1 port under the dash; meaning can I check codes and delete them with a scan tool for OBD1or do I go through the E8 ecu now?

If i still use the OBD1 port then I use a palm logger setup correct?
Through the E8 ECU i use the cable and software mentioned earlier in this thread?

Thanks for the help.
 
come to think of it. since there is an Evo8 ecu in there now wouldn't there need to be an OBD2 port for diagnostics??

Yes, you will need to wire in an OBD2 port... unless whoever did the swap actually wired in the OBD1 port correctly, bet even so you would still need to make an OBD1 to OBD2 adapter harness and run a scan cable/software meant for OBD2.
 
yea i don't even begin to know if the guy wired the obd1 port right... guess the only thing to do i find out if the o1 and o2 ports share the same # of wires then just hack off the old port and wire in a obd2 port. Does that sound like a step in the right direction?

Thanks for the post Mike...

Chris
 
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today while me and a friend were out driving my car diagnosing a problem i'm having with loss of power and stumbling idle; we found the obd2 port! So all I need now is ecuflash and a cable to be able to look up my CEL and turn it off? The cable will go from the port to a laptop correct?
 
today while me and a friend were out driving my car diagnosing a problem i'm having with loss of power and stumbling idle; we found the obd2 port! So all I need now is ecuflash and a cable to be able to look up my CEL and turn it off? The cable will go from the port to a laptop correct?

Yep that'll do it. OP1.3U :thumb:
 
question for anyone out there that can help...

If my AEM UEGO gauge was tapped into the Evo8 ecu's rear o2 pin, and the gauge is malfunctioning i.e. not working at the moment... would that cause the car to run like poop?
 
It depends on what rom you are running and what you have enabled.

If its a stock rom probably not, but you would throw a CEL after awhile.

If its a V6 rom with the rear O2 sim then no. That rom simply turns the rear O2 into into another input that you can use to log your wideband.

If the rom has the wideband O2 patch put in for the rear O2 then it would cause a problem since that patch uses the O2 sensor at that point to target the AFR in the fuel map.
 
Hey Danl, thanks for the reply.

I have no idea on what Rom the car is running on.

I bought this car from a guy who acquired it from the owner who surrendered the title for whatever reason.

Here's what happened, the car ran fine up to this point btw. I was messing with changing out the aem o2 sensor cause the gauge was stuck reading 14.7... during this time something happened and the gauge completely stopped working, it didn't light up anymore.

I had to drive to the store real quick, this is the first time driving with the gauge completely "broken"... the result was no power when trying to accelerate and stumbling heavy hesitation. The motor would slowy idle lower n lower till just about to die then rev back up. Plus i get a heavy aroma of fuel under the hood!

I have to believe the cause is the gauge, and not just coincidence that I developed some kind of engine problem. :confused:
 
Yup, that's what it was!

My old AEM UEGO gauge took a dump and wasn't registering any signals i guess the E8 ecu is setup to read off the gauge.

Replaced the gauge and all new wiring harnesses just in case and car runs fine again!
 
Has anyone tried this in an auto dsm?
I'm thinking about trying it.

I was 5 speed with the evo 8 ecu for 2009 and 2010. I went to auto with the kiggly mod in 2011 and ran the evo 8 ecu. It runs fine like this. 11.5 on 93 octane + 17" evo wheels and summer tires, 11.3 with a little E85 mixed in, 11.1 on borrowed 24.5" slicks and way out of gear. The 1g TCU doesn't interact with the ecu, this is why you can run a 5 speed ecu/rom in a 1g auto and it will operate just fine.

I don't drive the car much on the street as I have a daily driver and an evo 9. However I drove it back from the track that day and all was well. The ecu can still properly boost by gear which was my main worry with the indirect coupling between the engine and transmission due to converter slip.

You can use the alternate maps to tune for nitrous if your one of the auto guys who use that to spool the car and/or run it down the track.
 
Absolutely, actually that is how I run my car. I had a GM MAF + chippable 90 eprom ecu that I made my own chips in up until about 2008. I then did this evo 8 ecu thing in my 1g because I liked tuning my evo whereas I hated having pull the chip out of the ecu, figure out what hex values to change, dump the bin file into the burner, get the USB burner properly configured, burn the chip, put the chip back into the ecu, blah blah blah.

Anyways I use the OMNI 4 bar MAP and so does my friends 90 AWD 5 speed car. I'm sure you can use other sensors but its up to you to find the calibration settings on the evo forums. You will find that the 4 bar 0-5 volt sensors are more popular and easy to find the rom definitions for. I have sourced a really great 0-5 volt 4 bar sensor from digikey for like $10 that will work as well if price is a concern. You then run the GM IAT, I usually get mine from ballanger motorsports and be sure to buy the denso one made in the USA, the china ones I have had fail on me when I bought one by mistake (it melted from turbo heat).

I really like mass airflow for a street car. Putting an evo 8 maf into your DSM would be a good ticket for cars that see 0-120 deg F and 0-5000 feet elevation changes. Speed density works best for weekend warriors, track only cars, or cars that you don't mind tinkering with from time to time.

Its not that a properly set up MAP car can't work in all conditions. The issue arises with how good you are at tuning speed density. I am very comfortable tuning it and my car is extremely consistent pass to pass. Even when nightfall comes and air temps drop 50 deg I am within a tenth of my daytime AFR's.

You also have a lot of tables to fine tune your cold start with. Last time I started my car it was 5 deg F. It has an 8 year old PC680 motorcycle battery and 1000cc/min injectors in it. Fired up first crank.
 
im interested in this swap but im a total noob when it comes to wiring. has the harness been made by any company yet? it seems like it would be a cheaper alternative than spending $600 on link.
 
well i guess no one ever made a harness. I actually have an evo 8 aem ems i got for 300$ and i need a harness to use it :(
if anyone knows where i can find one. PLEASE HELP!!
:ohdamn:
 
Personally why not just go with link? Less hassle & does everything & more than you need it to
 
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