- Location
- Chicago
- First Name
- Mike
- Drive
- 1997 Mitsubishi Legnum VR4 COTY
2022 Subaru Outback Onyx XT
1999 Honda Civic EX
7201 for 72027202 for a 7201?
7201 for 72027202 for a 7201?
To be clear, if I understand correctly, your car comes with a 7201 metal case ECU, right? So, you physically swap into a 7202 plastic case ECU, right? Because you always mentioned your 7201 working, maybe everyone thinks, at lease I was, that you flashed 7202 rom into the 7201 metal case, and of course it is impossible.7201 for 7202
Yes, the car came stock with a 7201ecu. I purchased a 7202ecu from a member on this site. When I install the 7202ecu the car sputters real bad and there's no tachometer. I'm trying to find a working ROM for the 7202ecu. When I put the 7201ecu back in the car runs normal again.To be clear, if I understand correctly, your car comes with a 7201 metal case ECU, right? So, you physically swap into a 7202 plastic case ECU, right? Because you always mentioned your 7201 working, maybe everyone thinks, at lease I was, that you flashed 7202 rom into the 7201 metal case, and of course it is impossible.
Yes, the car came stock with a 7201ecu. I purchased a 7202ecu from a member on this site. When I install the 7202ecu the car sputters real bad and there's no tachometer. I'm trying to find a working ROM for the 7202ecu. When I put the 7201ecu back in the car runs normal again.
I did try EM2428 but same results, No tach and sputters. The Roms I tried are from ClubVR4 and VR-4.ruMy only suggestion to you is to try another ROM that's not EM2004/EM2005. Hope to upload a repository of original, unmodified ROMs soon.
You've posted in other sections of the forums asking for definitions. All the definitions for our ECUs are on GitHub. Even if you used definitions that aren't as comprehensive, it wont fix your issue. The ROM contains everything that the ECU needs to run (the program the ECU executes to keep the motor ticking over, and all the values in the tables). All the definitions allow you to do it make sense of the values so you can change them if needed.
In your case, you are trying to put an unmodified ROM onto this ECU, which should just work, regardless of which definitions are in use. so even with incomplete or incorrect definitions, so long as:
Then it should work.
- the ROM you are flashing is unmodified
- the memmodel is set correctly, so for a 7202 make sure Ecuflash is using H8539F (not FA, see screenshot below)
- the ROM successfully flashed
Otherwise, sounds like your ECU might be bung. Most people converting to a plastic case ECU just plug-in and play.
I've got a drawer full of different ECUs and all work in my Galant (both 7201 and 7202/03). So something isn't right with your setup.
Tacho signal is generated by the IFS, which sends a pulse each time 1 of the 3 ignition coils fire. So it seems like something isn't right with the way the ECU is driving the coils, or how the ECU is interpreting your crank angle sensor signal.
I will double check the settings again. If still not working, I shall wait for the Roms to be uploadedon ozvr4. Also trying to get a hold of Steve from TME but no reply via email. I figure its busier down there since its summer for you.
Steve is always busy nowadays, very hard to get a hold of. TME are doing a fair bit of tarmac hill climbs & track work.
I think you should just buy another, untouched ECU. The fact you have a metal case that was tuned for an FTO and have spent so much time trying to fix something everyone says will just work should be enough motivation to start again with a known ECU.
All looks ok, maybe its just a bad rom.My only suggestion to you is to try another ROM that's not EM2004/EM2005. Hope to upload a repository of original, unmodified ROMs soon.
You've posted in other sections of the forums asking for definitions. All the definitions for our ECUs are on GitHub. Even if you used definitions that aren't as comprehensive, it wont fix your issue. The ROM contains everything that the ECU needs to run (the program the ECU executes to keep the motor ticking over, and all the values in the tables). All the definitions allow you to do it make sense of the values so you can change them if needed.
In your case, you are trying to put an unmodified ROM onto this ECU, which should just work, regardless of which definitions are in use. so even with incomplete or incorrect definitions, so long as:
Then it should work.
- the ROM you are flashing is unmodified
- the memmodel is set correctly, so for a 7202 make sure Ecuflash is using H8539F (not FA, see screenshot below)
- the ROM successfully flashed
Otherwise, sounds like your ECU might be bung. Most people converting to a plastic case ECU just plug-in and play.
I've got a drawer full of different ECUs and all work in my Galant (both 7201 and 7202/03). So something isn't right with your setup.
Tacho signal is generated by the IFS, which sends a pulse each time 1 of the 3 ignition coils fire. So it seems like something isn't right with the way the ECU is driving the coils, or how the ECU is interpreting your crank angle sensor signal.
.Tried it again this weekend with four different roms and all the same results? Either the ROMs are all bad or this box has got issues. Does anybody happen to have a working rom for a model with automatic TCL AYC? plastic box MD362895 7202chipI did try EM2428 but same results, No tach and sputters. The Roms I tried are from ClubVR4 and VR-4.ru
I will double check the settings again. If still not working, I shall wait for the Roms to be uploadedon ozvr4. Also trying to get a hold of Steve from TME but no reply via email. I figure its busier down there since its summer for you.Tried it again this weekend with four different roms and all the same results? Either the ROMs are all bad or this box has got issues. Does anybody happen to have a working rom for
Just replace the ECU. It sounds like it's an issue with the ECU itself..Tried it again this weekend with four different roms and all the same results? Either the ROMs are all bad or this box has got issues. Does anybody happen to have a working rom for a model with automatic TCL AYC? plastic box MD362895 7202chip
I've been having a play around with this as well, I edited the ROM XML file to include the EMKS11 XML when loading - however I just don't know if that also makes it refer to the extended fuel/ignition maps.Good pickup, will get the read templates sorted when I get to my PC.
KSMods is a tricky one as the original ROM is a 20030013. Kenneth changed the ID at the end of the ROM, but most of the defs use the ID at the start of the rom.
I'll try and think of a better way to get the defs working for all ROMs
Workaround for now:
Basically need to edit Kenneth's rom, change the ID at 0x21a using hex editor to read something else instead of '20030013' (perhaps '20030113') which will then pick up EMKS11.xml instead when you open it.
or
Rename/edit XML files so 20030013 isn't an ID that will match (rename xml, edit and change any references in all XMLs from '20030013' to '20030113' for example)
Will post up detailed instructions soon for both of these workarounds.
I am trying to do that as well, not easy finding one in the US.Just replace the ECU. It sounds like it's an issue with the ECU itself.
I have a plastic case ECU here at home that's missing the brackets, if you can transfer them from yours then you'll be sorted.I am trying to do that as well, not easy finding one in the US.