Mitsubishi spacestar 1.3

[JotaB]

Hello everyone

I've a problem with a ecu mitsubishi, I need to change the ECu with a used one because the old does not work correctly.
My problem is that the used one that I've bought is not syncro with immo and I've asked help to some friends a that have lauch x431 and MUTII but they couldn't do the syncro.
Now I'm attempting to program the MH8206F in the ECU, but can not find the datasheet for it, I know it's Renesas. When I searched in the forum for this car ecu I've found that it as the MH7203F or SH, now I'm confused because this flash only as 128K and after a search in the internet I Know that the MH8206F=SH7052F but this one as a Flash of 256K, can somebody clarify this?
Can somebody help me how to program the ECU reading the old one and transfer the program to the new used one, I know that with openport or tanctrix, or Piasinni we can do this, but I think that I'll have just this one to repair, this is the only DENSO that I've repaired, and don't want to spend more money on this matter.

Thank's in advance

JB

[smokinjoe]

what is the fault with your original ecu







what is the fault with your original ecu






















































what is the fault with your original ecu?

[JotaB]

In the dashboard the rpm gauge fails to mark correctly and then it stops, the speedometer after driving a while stops at 70Km or 80 Km .
The ECU receives the pulse from motor I've checked with diagnostic and it's stable.
With a Osciloscope in the pin output to the dash for RPM it fails the pulse.

[smokinjoe]

i repaired one of these ecu's this week but my car had a different fault of no spark,i can't help you with programming as i think dealers way out of this is to replace immo and key too but if you have a replacement ecm with the same part number then swapping the processor will do the same job.

[JotaB]

i repaired one of these ecu's this week but my car had a different fault of no spark,i can't help you with programming as i think dealers way out of this is to replace immo and key too but if you have a replacement ecm with the same part number then swapping the processor will do the same job.

Thank's, I know that this ecu needs new keys and immo to syncro a colleague in Mitsubishi told me that. Swapping the uPc could be a damned job it as 208 pins and pins are very thin and don't want to take the risk of destroying the pads. And having two destroyed ECU's because car work's.

[JotaB]

Hi can anyone please tell me if the Flash MH8206F is the same size as MH-7203F?

[pablo1971]

hello.....maybe a stab in the dark....but this ecu maybe possible to immob off with a read of the flash.

[JotaB]

hello.....maybe a stab in the dark....but this ecu maybe possible to immob off with a read of the flash.

Yes, that's what I'm attempting to do. But do not have Piasinni or openport or MUTIII I'm trying to read it with soft from renesas but the problem is with Boot mode. Do you know how to boot the processor without erasing the all Flash?

Thank's

[pablo1971]

no sorry i cant help you there...dont you no anyone with a openport or piasini...

[JotaB]

hello

I don't Know no one here in my country with one of those interfaces. I have ELM327 and tryed to conect to ECU using the sw ECUFlash but no results there are some diferences between the FT232 with the smm.
Do you have a dump for a Mitsubishi Space star 1.3 with ECU MR578050 with MCU MH8206H

[JotaB]

No one as a Flash dump for this ECU? please

[addgsm]

hello.....maybe a stab in the dark....but this ecu maybe possible to immob off with a read of the flash.
Hi bro please do u have immo off flash for this ecu I have piasini and tactrix
to write
mcu mh7203f
br

[pablo1971]

have you got a read of the flash...

[addgsm]

have you got a read of the flash...
yes here is it

[pablo1971]

what year is this....petrol or diesel???

[addgsm]

Year is 1999 petrol

[Bruce Willis]

205235here you go
Pass in PM

[addgsm]

thanks for ur help but ur dump did not work
br

[taras_rx7]

Try this without check sum205347

[addgsm]

thanks will test and post feed back tomorow
br

[addgsm]

Try this without check sum205347
did not work

[taras_rx7]

fuel pump work ? In this ecu with/without immo fuel pump connected is different pin

[piotrp5]

Hi , I have Mitsubishi space star , I want immo off , ecu MR578050 Can you help me with immo off?