Evo 8 ECU In 2g Works!!

[the_mork]

i think we are all on evom as mush as we are here.

evo 560's running out of room about 19psi, that makes two of us..... i think i want to pick up a stock injector or two and see about doing the Subaru injector mod to one of them and see what it does.

I'm pretty sure that you can't do the Subaru mod. They have a cap over the pintle that is microwelded on and this is what you are removing. If you can do it I would love to know but I just don't think it works on Mitsubishi injectors.

 

[mike96]

i think it is possible, maybe not with the older DSM injectors but with the EVO8 i think so. i have a friend here where i work who has a 02 WRX wagon and i was comparing his injectors to mine. the evo8 injectors have a cap welded to it just like the subaru injectors. but i am going to pick up a set of DSM injectors just to see.

 

[jrohner]

i think it is possible, maybe not with the older DSM injectors but with the EVO8 i think so. i have a friend here where i work who has a 02 WRX wagon and i was comparing his injectors to mine. the evo8 injectors have a cap welded to it just like the subaru injectors. but i am going to pick up a set of DSM injectors just to see.

Injectors fit the same for DSM's and Evo's.

 

[the_mork]

I would like to start messing around with ecu based boost control and I was hoping that some information might be found here that could help me.

My JoeP MBC has lost its adjustment screw a few times and this time it must have lost more than that because a replacement screw doesn't do anything.

Therefore I'd like to look into ecu based boost control because a GM 3-port and pigtail are about the same price as a new MBC and support boost into the mid 20s. Hopefully this will also help with 1st and 2nd gear traction by using the gear dependent boost control to turn it down a bit.


Here is the question, do we know if the stock 2g BCS is wired the same way as the evo8 BCS? If it isn't do we know what the difference is? I'm not afraid of hacking up a little bit of wiring but it would be nice if this was something I didn't have to run wiring a ways for. Also there are several mentions of pills to change boost behavior. I haven't researched this much because my MBC just went bad today so in short how do these pills work? I understand that they are a restrictor but I've mainly seen people talk about them in conjunction with the stock BCS, are they necessary on a 3port and if so where do I find one? I had planned on just getting a new MBC but this solution seems much more elegant.

 

[Silver2GST]

Well, as far as the Pills are concerned i have read MrFred (he is the creator of the original code) over and over again advising that these are not required if you switch to the GM 3 port solenoid. I Think you used the pills in conjectural with the stock BCS to delay the pressure wave from reaching the WGA, thus increasing boost. The are bleed type devices and tend to slow Wastegate response (not as crisp of a 'signal').

Now, using the the stock wiring in our DSMs, i'm going to have to say YES (correct me if i'm wrong anyone). The stock ECU has 1 wire running to the stock BCS. BCS is wired to a power source and the ECU controls the ground path .
In any case, now that we have the EVO ecu we are constrained to its output. The BCS wire is already in the correct location. Just need to add the resistor in the circuit.


HOW TO - Control boost using ECUFLash and 3 port GM boost solenoid - Page 26 - evolutionm.net

Ecu-boost : Stock Solenoid with pill VS GM boost solenoid - evolutionm.net

 

[Silver2GST]

By the end of May I will deffinitly be installing a GM 3-port BCS to take advantage of gear dependent boost on my FWD! 204,xxx miles on the original tranny so i need to keep the record going !

 

[jrohner]

The stock ECU has 1 wire running to the stock BCS. I'm not sure if the BCS is wired to a power source and the ECU controls the ground path or does the ECU supply the high side and the BCS is simply grounded to the chassis at its end. I pretty sure it is the latter (that is the ECU supplies Vcc (5 or 12 volts)).

The ECU controls the ground.

 

[Silver2GST]

Okay Thanks for clearing that up.

Then the goal is to have at least 25 Ohms in the circuit but according to the OP on the EvoM thread, 24-36 Ohms is an acceptable range.

Check the resistance of the solenoid. If its between 24-36 ohms, it should work fine by itself. If its lower than that, you'll want to put in a resistor to get it up to at least 25 ohms.

 

[the_mork]

With the increased interest in the evo8 ecu lately I thought I would post a website that I found helpful.

Category Archive for ‘Video’ at

This has videos for pulling and placing ecu pins on an evo8 which is a similar setup to a 2gb.

It also has a video for map tracing in evoscan.

I found the videos on replacing pins to be very helpful because for some reason I was having a hard time visualizing how to remove the pin and I managed to screw one up pretty bad, after seeing this video I didn't have any more problems.

 

[tom04841]

also, try these XML's. i have put together a couple of comprehensive XML's that i use. the only thing that is a little off in my XML's is that there is an extra turbo section. the section for direct boost control has all of the files that you need to control boost directly in it. to change the load based boost you need to modify some of the files in "turbo boost single solenoid" "turbo" and boost error correction under direct boost control. i know this is true for the 9653 but i haven't used the 9055 in a while. i was going to use it to switch over to speed density, but with JcBanks saying that he is almost complete with SD for the 9653 ROM i am holding out for that..... just change the ".doc" to ".xml" and use the included evo7base just to be sure everything works.

I don't know what i'm doing wrong, but I can not get 9653 to start in my car. I have diasabled the immob and still nothing. The only rom i can get to work is the one gsxdna sent me which is 9927. Someone want to email me one of ttheir working 9563 roms so I can give it a shot and compare to the ones I've tried? [email protected]

 

[the_mork]

I've sent one to you.

 

[GSXDNA]

So I've found it extremely difficult to scale my PTE 780 injectors using EcuFlash and my Evo8 Ecu. I called RRE, and they said that I need to have a 30 amp relay put in for my fuel pump to compensate for some electrical complications of running the Evo8 Ecu with the 2G electrical system. They said it was a quick/easy fix.

So, now that I have all the supporting mods done (bigger turbo, larger injectors, stronger clutch, bigger IC, new IC piping, etc.), I'm going to bring the car down to RRE to install the relay, and have the car tuned for 91 octane and for E85. I'm really anxious to see what this car will put down with E85. My appointment is next Tuesday, so I'll post afterward.

 

[the_mork]

So wouldn't that be the same end result of any standard fuel pump rewire? I know that the evos use a dual voltage system that increases fuel at when we hit high load but IMO that shouldn't be even slightly relevant unless you get to the point where your injectors are outflowing your fuel system. Which fuel pump are you using?

 

[steve]

I know that the evos use a dual voltage system that increases fuel at when we hit high load but IMO that shouldn't be even slightly relevant unless you get to the point where your injectors are outflowing your fuel system.

I thought the EVO's used the same sort of dual voltage setup as used on their other cars where the normal mode is a reduced voltage to avoid overrunning the FPR and at WOT the ECU switches the resistor out of the circuit sending full voltage to the pump.

So if your injectors are bigger than what your pump can support (outflowing) then it does nothing for you.

Now if they are running some sort of factory boost-a-pump DC to DC converter to raise the voltage to the pump over 14.X volts it would see if the wiring and alternator are working that might explain it.

 

[GSXDNA]

So wouldn't that be the same end result of any standard fuel pump rewire? I know that the evos use a dual voltage system that increases fuel at when we hit high load but IMO that shouldn't be even slightly relevant unless you get to the point where your injectors are outflowing your fuel system. Which fuel pump are you using?

I'm running a 190 right now. May need to bump up to a 255 if I'm going to run E85...the 190 will be cutting it close.

 

[the_mork]

I thought the EVO's used the same sort of dual voltage setup as used on their other cars where the normal mode is a reduced voltage to avoid overrunning the FPR and at WOT the ECU switches the resistor out of the circuit sending full voltage to the pump.

I'm not sure but I always assumed it was ~14v at the higher setting, it was always explained to me in terms of the higher setting being similar to a rewired DSM setup but easily this could just be that the evos use better wire and use a resistor system in order to avoid overrun.

So if your injectors are bigger than what your pump can support (outflowing) then it does nothing for you.

Well this is kind of my point, wiring in a 30amp relay shouldn't help you dial in your injectors unless you have a fuel pressure problem, overrun, insufficient fuel, insufficient fuel pressure, etc. If you are flowing enough, your FPR can handle your pump, and your fuel system can handle the flow then wiring shouldn't matter.

 

[the_mork]

Does anyone else's doors lock and then unlock when shutting off the car? Does anyone know a fix?

My remote also stopped working but that might be because it finally ran out of battery.

 

[mike96]

mine does the same thing but i never paid it any atention.....

 

[clockworktoy]

If you keep your open port cable hooked up it grounds the pins that the alarm uses to reset itself. If your remote stopped working then try reprogramming it and make sure to unplug he obd2 before your turn your car off and your should be set.

 

[the_mork]

Great, I'll get a new battery so that I can open my car from more than 2 feet away and then I'll try setting it.

 

[GSXDNA]

I updated the first post in this thread with Silver2GST's diagram (I made a few corrections), and added another "perspective" diagram. Please take a look and provide me with any feedback.

 

[the_mork]

I think the first post still needs some discussion of the ROMs, what work well and what don't as well as a bit more explanation of what is necessary for managing the immobilizer. Some more links to ecu topics on evolutionm might be helpful as well.

Speaking of a discussion of roms I think it may be a good idea to have one again. Is there anyone running well on anything but the 9653? I ask because SD and direct boost control haven't been ported to 9653 yet and I would love to run both of them. Furthermore having a few options would be good as well. Did anyone run 941700xx to verify the inverted load issues that were reported before? Any other issues?

I might just go play with some of these things but my plate is a little bit full at the moment with a new transmission for the Jeep, 3g lifters, map and iat install, and painting new wheels. All of that on top of finals.

 

[clockworktoy]

I think the first post still needs some discussion of the ROMs, what work well and what don't as well as a bit more explanation of what is necessary for managing the immobilizer. Some more links to ecu topics on evolutionm might be helpful as well.

Speaking of a discussion of roms I think it may be a good idea to have one again. Is there anyone running well on anything but the 9653? I ask because SD and direct boost control haven't been ported to 9653 yet and I would love to run both of them. Furthermore having a few options would be good as well. Did anyone run 941700xx to verify the inverted load issues that were reported before? Any other issues?

I might just go play with some of these things but my plate is a little bit full at the moment with a new transmission for the Jeep, 3g lifters, map and iat install, and painting new wheels. All of that on top of finals.

I successfuly ran the 9725 JDM rom with no problems. The 9417 rom gave me several issues that made me give up on that specific rom. I decided to run the 9653 rom because of the tephra mods and MUT mods available. I agree with you with wanting to run speed density, but i guess ill just hold out until mrfred or jsbanks gets around to creating a patch for this rom.

 

[the_mork]

What were your issues? I had no CELs and the car idled fine but that is as far as I went with it.

 

[clockworktoy]

I don't remember exactly but i do remember having a couple cels.