MD128617 FAT ECU...Where is it from?

[teamitr]

I just purchased a md128617 from a local place But the ECU is fatter then the original ecu form my 91 galant vr4, I opened it and it has a double board inside, I pluged it in and the car fired up but it was idling hi like 1800rpm. Where is this ecu from? and what kind of specs am i looking at, Bigger injectors,timing...

 

[teamitr]

I found this info:
91-92 GVR4 E39A JDM WoC
But what does WoC mean?

 

[notverygood]

91-92 gallant vr4 I believe. Also incorporates transmission control, so id say auto trans too.

 

[notverygood]

Apparantly its a jdm unit. Good luck with that one-most jdms incorporate completely differnt logic and programming due to different emissions/ratings.

 

[teamitr]

So I might be getting a check engine light for the tranny BUt I can still use it... Should I hook up the wideband and tune my AFC to that...

 

[notverygood]

I dont know if you can use it. Most jdm engines have different wiring and sensors-sorry I cant be of more help. Good luck.

 

[ALI_6306]

Its for a Galant JDM E-E33A SRGM 2. Basically Naturally Aspirated 2WD version. Its only an ECM and not a transmission control.

 

[Bud92gsx]

So did it come from a jdm galant with the switchable trans then?

But then it could have also came from a cyclone car..Which then means the double board should be the built in cyclone control..But Im no expert..Thats just a best gues scenario..

 

[Colt4G63 also]

Old thread, but I have one of those double board ECUs too. I pulled it from a Galant in a yard.

 

[Bud92gsx]

I didnt even see that this was old..But then..What ecu is it..You ever had it checked..The jdms came with 500 injectors and a big 16g..

 

[ALI_6306]

Hi Bud92gsx,

You are absolutely right. Its a naturally aspirated CYCLONE 4G63. I am not sure what you mean by switchable transmission. But if you mean that the same ECM will work with M/T, you are right. Mitsubishi I believe always had separate ECM and ECT units.