Ecu change in HSG

[osirinz]

I have a 97 Rvr Hyper SG, it has ya usual mods bov intake exhaust etc. My question to all is i have a Mitsi evo 2 ecu and want to run it....i have plugged it in and it started just had a cagey idle but thn came right but after revs it would do it again. It had no check engine light or fault codes etc. Took it 4 a run and the differance was instant more power boost etc but had 3 noticable dead/flat spots.

Im wanting to no if i need to change anything else to make it run right??
I was thinkng maybe upgrade to evo air flow meter?
Any help would b greatly appreciated.

 

[4piknup]

Are the rvr and evo ecu pins the same? I know there is a difference in the cas. I don't know if they are compatible
Pop the lid on the ecu and check for cooked components.
Also consider ecmlink, or the later evo ecu that is tunable and just needs a few pins moved
ECM link will run any afm evo, magna or your current one

 

[vuonguz]

hey sorry to jump in this post, what do you mean by later evo ecu? is it possible

 

[osirinz]

Are the rvr and evo ecu pins the same? I know there is a difference in the cas. I don't know if they are compatible
Pop the lid on the ecu and check for cooked components.
Also consider ecmlink, or the later evo ecu that is tunable and just needs a few pins moved
ECM link will run any afm evo, magna or your current one

Im un.sure i jst figured thy wuld be the same 4g63 motor so ecu would work. I popped lid....looks fine no cookd parts or burnt smell. What is cas?
I just want the evo ecu to get from 180kw to 205kw but have no ambition to mke more power than that as it is a tow vehicle.

 

[4piknup]

I think the injectors are smaller than evo, also different afm. Also maybe different cams and turbo, but this Shouldn't bother you.
Do the afm and check what colour injectors you have. That should get you in the ballpark. A wideband o2 sensor would be nice to check fueling after

 

[4piknup]

hey sorry to jump in this post, what do you mean by later evo ecu? is it possible

Is a evo 5-6 ecu I think. There is most info on here and a couple of the guys have done it. Tune with evoscan

 

[osirinz]

I think the injectors are smaller than evo, also different afm. Also maybe different cams and turbo, but this Shouldn't bother you.
Do the afm and check what colour injectors you have. That should get you in the ballpark. A wideband o2 sensor would be nice to check fueling after

Ive just searchd my factory afm number e5t08072 and its factory in evo 4,5,6. so im guesing changin tht to tha earlier evo 123 afm ta match ecu might help. my injectors have bright yellow tops and turbo is tdo5 and this is all factory.

 

[vr401]

AFM in hyper gear rvr is 878 which is different to evo 123 No 609. Ssg rvr comes with 609.
Also, there is a difference between 878 and 609 in ecu code. I have somewhere multiplayer and adder for two as well as afm compensations.
As for late evo ecu, best is evo 8 usdm or edm with 4 plugs on them so you can just swap some wires/pins on your rvr ecu plugs and plug it straight into evo 8 ecu. It has been done on evo3 with great results.

 

[vr401]

 

[vr401]

First 5 is for different vr4 galant eproms

Also, magna 055 is just taken from modified vr4 bin and it was working OK.

 

[osirinz]

AFM in hyper gear rvr is 878 which is different to evo 123 No 609. Ssg rvr comes with 609.
Also, there is a difference between 878 and 609 in ecu code. I have somewhere multiplayer and adder for two as well as afm compensations.
As for late evo ecu, best is evo 8 usdm or edm with 4 plugs on them so you can just swap some wires/pins on your rvr ecu plugs and plug it straight into evo 8 ecu. It has been done on evo3 with great results.

So shuld i try a 609 evo afm and my evo 2 ecu 2gether on my hsg....being that i have later afm and u say ecu code is diferent than my evo 2 ecu i wish to run?? I dont understand the tables u posted

 

[vr401]

So shuld i try a 609 evo afm and my evo 2 ecu 2gether on my hsg....being that i have later afm and u say ecu code is diferent than my evo 2 ecu i wish to run?? I dont understand the tables u posted

The table shows different scaling for AFM as well as different multipliers and adders for different AFM. These are used by ecu to calculate fueling in regard to airflow readings. The numbers show compensation in regard to Hz reading of airflow meter.
it goes from 0Hz to 1600Hz with increasement of 25Hz for low readings then 100Hz for mid and 200Hz for top. Changing these numbers will affect air/fuel mixture

if you use 609 with evo 2 ecu it will be good, but only if evo 2 uses 609 like evo 3 does.

 

[Rockabilly]

^^ He is the ECU Guru. FQ400 maps slightly altered in my HSG by VR401
Cheers !

 

[vr401]

Rockabilly,
I'm waiting for your evo8 ECU to go in to start tuning it.

 

[vuonguz]

so how mio my ssg is modded and if your saying running an evo8 ecu will do the trick, how much do these cost you know

 

[vr401]

so how mio my ssg is modded and if your saying running an evo8 ecu will do the trick, how much do these cost you know

Last time I've checked eBay around 350-400 $

There is so many write-up's on how to do a swap.
Bare in mind that after you do conversion you need ecuflash and correct xml to modify/flash evo8 ecu to suit your car setup.
Injector size, afm compensation, timing & fuel map etc.

Check this out
http://www.geekmapped.com/forums/showthread.php?t=1016&highlight=evo5+ecu+into+evo3