Spoke with Mike a few days ago, He liked the idea, just got swamped with a few things and a couple toons to do so haven't able to throw in an update. Mike is at Sema right now also. But I was thinking of making a hacker tweaker swap harness that only replaces jumps the part of the harness that needs to get modified and everything else stays, which will cost us less and in turn cost you guys less. Or just sell the full jumper harness with modification done to it already, and you guys can still use it to install other things into your harness without raping the car harness because we all know how well our 10-15yr old harnesses are doing and they just love getting yanked on, pulled on, cut, soldered, twisted, covered in taped, crimped, and whatever other molestation we do to em. But I will be trying in on another BONE STOCK CAR just to check out a few things. The Evo8 ecu also has an output to trigger a secondary fuel pump relay for high loads that we don't use and can use for our advantage like boost control for fwd guys to go from low boost to high, or IC sprayers, or ice cream truck songs to come on under full load. Still some digging I can do into this and see what other potential we have for this.
Whilist my motor is comming back together, the 420A DD sucks donkey but loving the 10miles per dollar of gas.
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Like an evo8 ecu swap? less talk about the definition of a standalone and more talk about results!!!
Thanks to everyone in RRE who did their part in getting this thing running! Has it been long enough for the ecu to finish updating? How's the fuel trims now that you've changed the maf compensation?
I am still seeing one issue, which is throwing off the check engine light. I attribute this issue to a bad 02 sensor up front. I have messed around with the MAF scallings and the fuel/timing maps substaintially, and the car is running well. I've only tuned up to 15psi, as I am at 89% IDC with my stock injectors. Larger injectors and a stronger clutch are on their way.
As soon as i get some free time, I'll swap out the front 02 and see if that fixes things.
Spoke with Mike a few days ago, He liked the idea, just got swamped with a few things and a couple toons to do so haven't able to throw in an update. Mike is at Sema right now also. But I was thinking of making a hacker tweaker swap harness that only replaces jumps the part of the harness that needs to get modified and everything else stays, which will cost us less and in turn cost you guys less. Or just sell the full jumper harness with modification done to it already, and you guys can still use it to install other things into your harness without raping the car harness because we all know how well our 10-15yr old harnesses are doing and they just love getting yanked on, pulled on, cut, soldered, twisted, covered in taped, crimped, and whatever other molestation we do to em. But I will be trying in on another BONE STOCK CAR just to check out a few things. The Evo8 ecu also has an output to trigger a secondary fuel pump relay for high loads that we don't use and can use for our advantage like boost control for fwd guys to go from low boost to high, or IC sprayers, or ice cream truck songs to come on under full load. Still some digging I can do into this and see what other potential we have for this.
Whilist my motor is comming back together, the 420A DD sucks donkey but loving the 10miles per dollar of gas.
Nice...I'd love to hook the 2nd fuel pump relay to an IC sprayer. Although, i must admit, having an ice cream truck song come on when the car hits 20psi would be pretty baller.
The other option would be to look into actually using this switch to control the fuel pump so that people who switch to an evo 8/9 pump don't have to get an afpr. Then again I have no idea how much extra wiring is involved in that setup but I doubt it would be much more than for an ice cream truck music player.
The other option would be to look into actually using this switch to control the fuel pump so that people who switch to an evo 8/9 pump don't have to get an afpr. Then again I have no idea how much extra wiring is involved in that setup but I doubt it would be much more than for an ice cream truck music player.
Maybe this 2nd power could also be used to turn on a meth injection pump or nitrous controller? By all means correct me if I am wrong about it but it could be a possiblity.
A few posts back I saw a comment about dsmlink being used in 240sx's? VERY interesting info, where can I get more info on that? Assuming that since dsmlink is a java based program its really just a matter of making an eprom work with it. Such as an safc being universal for many vehicles?
I wondered about the evo ecu in a 2g but never truly thought about it working till reading this. AWESOME INFORMATION!!!! keep it coming in. Definatley try a new 02 sensor. to rich, to lean, leaded fuel, age, antifreeze, oil, can all contaminate o2 sensors and make them do very interesting things.
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92tsi fwd
92parts car
90tsi awd
96tsi wifes
ECUflash can control a meth injection setup,as EVO guys have already been doing this. One additional thing it does, which I really like, is valet mode. You can set it to only go up to a preset rpm, so valet guys can't bang on the car when you have it parked.
If you're still having troubles with your O2 sensor, you could try turning it off by using one of the following codes:
56D0 -No rear O2 no Immobilizer
5650-no rear O2, No immobilizer, No knock
5658-no rear O2, No knock sensor
56D8-no rear O2
5698, no front or rear 02
5690, no front 02, rear 02, or immobilizer
56D2, No immobilizer
Maybe this 2nd power could also be used to turn on a meth injection pump or nitrous controller? By all means correct me if I am wrong about it but it could be a possiblity.
A few posts back I saw a comment about dsmlink being used in 240sx's? VERY interesting info, where can I get more info on that? Assuming that since dsmlink is a java based program its really just a matter of making an eprom work with it. Such as an safc being universal for many vehicles?
I wondered about the evo ecu in a 2g but never truly thought about it working till reading this. AWESOME INFORMATION!!!! keep it coming in. Definatley try a new 02 sensor. to rich, to lean, leaded fuel, age, antifreeze, oil, can all contaminate o2 sensors and make them do very interesting things.
Yeah it should be able to control a meth or nitrous controller though most meth kits already have a provision for this and I would assume nitrous kits would too.
Is dsmlink java based? I kind of think that would be silly since Java is such a terrible language.
Getting the code that goes onto the eprom to work in another ecu would be difficult at best I think since it is almost certainly written in some sort of assembly and most of the provisions are dsm specific. I think it would be much easier to adapt the car to accept a dsm ecu.
If you're still having troubles with your O2 sensor, you could try turning it off by using one of the following codes:
56D0 -No rear O2 no Immobilizer
5650-no rear O2, No immobilizer, No knock
5658-no rear O2, No knock sensor
56D8-no rear O2
5698, no front or rear 02
5690, no front 02, rear 02, or immobilizer
56D2, No immobilizer
Thanks for the info. The car actually broke down on me yesterday. Something is up with the cooling system (even before the evo ecu install). Every once in a while, it just randomly overheats, and it's not the thermostat. So i finally took it to a mitsu dealership, and while it's there, im having them swap out the front 02.
Got some work done on the car (mainly maitentance stuff), and while the car was at the dealer, i had them put in a new 02 sensor. Same problem. Still only ready 3 different voltages. Starting to get pretty frustrated with that.
However, a much bigger problem, it looks like RRE may have accidentally hooked my fan up wrong. They told me that since the evo has a separate control module for the cooling fans, they had to wire the fan so it stays on whenever car is on...which is fine. But, it appears that the fan only comes on when the ignition is set to the "on" position, but goes off after the car car is started, which is causing my car to overheat when not moving. Does anyone have any wiring diagram for the fan layout? I was thinking i would actually hook it up to the thermostat, instead of whenever the car is on. Anyone know any reason why using the thermostat would/wouldn't work? If it would work, where is the easiest place to tap into that wire?
I would love to have RRE fix this for me (and Sam has offered to help), but i just cant take off any more days from work any time soon, which is what I'd have to do since RRE is like 90 min away from me and are only open 10-6 on the weekdays. So, I need your guys' input.
the fan for the evo is pwm so i dunno == but i do know in my case if i disconnected the fan wire from the ecu the fan would stay on all the time when the car is running so u may want to try that out for now.. U could also buy those fan controllers off ebay to run the fan off an electronic switch as a backup... just a suggestion
the fan for the evo is pwm so i dunno == but i do know in my case if i disconnected the fan wire from the ecu the fan would stay on all the time when the car is running so u may want to try that out for now.. U could also buy those fan controllers off ebay to run the fan off an electronic switch as a backup... just a suggestion
Interesting. Do you have any ideas what the four wires are for? I think the colors are blue, yellow, green, and black.
similar ecu setup with u try what they suggest on the first post and if u have questions ill explain it..
This is helpful...thanks. It looks like the reason there are four wires is because two of them are the Hi and Low relays. That actually makes a ton of sense, because i think the fan may actually be working when the car is on initially, but then when the car gets hotter, it goes off. I bet the RRE guys hooked up just the Low relay to the fan. I'll have to check and see if the fan goes on when the car is started and the motor is cold...I think it does.
Still not quite sure how to wire it, if i can't use the PWM cooling fan output from the Evo 8 ecu....
i would say try what is says on the bottom of the first post which is
Connect 31 from the ECU to 34 on the vehicle harness
Connect 31 from the ECU to 20 on the vehicle harness
Connect 32 from the ECU to 21 on the vehicle harness
i would say try what is says on the bottom of the first post which is
Connect 31 from the ECU to 34 on the vehicle harness
Connect 31 from the ECU to 20 on the vehicle harness
Connect 32 from the ECU to 21 on the vehicle harness
for u mostly 20 and 21 i think is urs
Exactly. Tonight, I'm going to see if the fan turns on when the car is started and the motor is cold. If that happens, I think that means that RRE may have connected the wire from pin 21, but not from pin 20.
o by the way are u getting the same three o2 readings or three different voltages and what voltages are they -- i have a feeling that o2 wire is wrong if its the same voltages each time then its definitely a wrong wire..
o by the way are u getting the same three o2 readings or three different voltages and what voltages are they -- i have a feeling that o2 wire is wrong if its the same voltages each time then its definitely a wrong wire..
Same three voltages. A wire must be wrong. I have to try to figure out what pins are wrong.
yup sounds like a crossed wire.... if u want send me a log and ill see if ne thing looks wrong... one of the sensors or valves should show something wrong other than the o2.. Also a list of your error codes as should have a few codes still.
hey did u ever try my rom? I think u should try my rom and relog and let me see that... Do u know what part number the ecu is also it should be mnxxxxxx ## rom seems to be a ralliart evo 8 but i dunno.. keep ## rom but i am curious if both logs will be the same issue..
No, i haven't tried your rom yet. i just picked my car up a few hrs ago.
I'd be extremely surprised though if the ROM made any difference in the front 02 values. I have tried numerous fuel/timing maps, maf scalings, etc., and none of those made any difference.
it made a difference in my case when the stock rom kept me in open loop all the time i switched to a different rom and fixed my problem instantly... never hurts to try -- the ralliart evo 8 might have a pin difference never know..
You could always leave the car at RRE overnight so that they can get to it in the morning.
Well, that's what I tried to do initially. I dropped the car off for a whole week. Gave them the car on a monday morning at 10am, and they didn't start working on the Ecu wiring until friday. Granted, they had to install a bolt on T28 and a fuel pump also, but a week is a long time to have a rental car. I'm better off trying to figure it out myself before I go through the whole rental car fiasco if i can avoid it.
I put my stock ecu back in last night, and I'm going to take a look at every pin to see what the heck is going on. I have a feeling a few pins may accidentally be swapped for the front 02.
it made a difference in my case when the stock rom kept me in open loop all the time i switched to a different rom and fixed my problem instantly... never hurts to try -- the ralliart evo 8 might have a pin difference never know..
Interesting. I will definitely give it a try if the re-wire doesn't make a difference.
Check engine light is gone (the front 02 wire was connected incorrectly), and the cooling fans are now working properly (thanks to Johnnyboy55). A/C doesn't seem to be working, but the car is running so good right now that I really don't care.
Check engine light is gone (the front 02 wire was connected incorrectly), and the cooling fans are now working properly (thanks to Johnnyboy55). A/C doesn't seem to be working, but the car is running so good right now that I really don't care.
Thanks to everyone who helped with this.
Did you switch back or is this running right with the evo ecu?
Did you switch back or is this running right with the evo ecu?
No, i switched back to my stock ecu just for one day so I could take my time rewiring the harness. The car now appears to be running perfect with the EVO 8 ECU (with the exception of the A/C issue).
It's actually really interesting how different the car feels. While doing the re-wiring, i switched back and forth between the stock 2G ECU an the EVO ECU a few times because i needed to drive down the street to run a few errands. With the 2G ECU the car just feels so docile, calm and lifeless. Then when i pop the EVO ECU in it just feels and sounds like a totally different car.
As a side note, I was driving around late last night doing a few pulls with my laptop logging some data and tuning, when in the midst of my pulls a BWM Z4 rushed to get beside me and then slowed down and began taunting me. I do not condone street racing, but i was already doing pulls....so i simply began another pull at that point.
I know those things only have around 255hp or so, but it was rather satisfying to see all the re-wiring frustrations and all the work I did resulting in a disgruntled/embarrassed look on the face of the Z4 driver. Plus, I still have my stock injectors in, with the stock clutch, and am still running stock boost.
But I will be trying in on another BONE STOCK CAR just to check out a few things. The Evo8 ecu also has an output to trigger a secondary fuel pump relay for high loads that we don't use and can use for our advantage like boost control for fwd guys to go from low boost to high, or IC sprayers, or ice cream truck songs to come on under full load. 
Still some digging I can do into this and see what other potential we have for this.
