I have a USDM 3-plug ecu (05 Evo8) rom id# 96940011. I'd like to flash it with a Tephra rom to take advantage of the extra features, but I'm not sure which Tephra version is best suited for this ecu?
Also, I want wire a clutch switch to activate both launch control & flat foot shifting, to what pin do I need to wire the switch to?

Thanks

 

https://www.evolutionm.net/forums/ec...hramod-v7.html

 

Ceddy has done modifications for the VI ECU, you can't use the Tephra V7 on your ECU

Ceddys mods

Opps, missed you had an 8 ECU

 

Ok guys, thanks, I'll try the V7 but what about the clutch switch? which pin do I need to use to connect a clutch switch to?

 

foxbat, to clarify, You should have 4 plugs for an 03-05 EVO 8 ECU and 3 plugs for an 06/EVO9 ECU (USDM). No biggie though. Both units are just as versatile.

 

My ECU for some reasons is 3 plugs! I downloaded its rom image & found its an 05 USDM evo8 id# 96940011
Do you know the clutch switch pin number for a 3 plug ecu?

 

lol! I'm pretty sure someone has loaded a USDM 05 ROM onto your EVO 9 ECU heh. If you're having no starting/running/tuning issues then you have effectively tested a newer ECU with an older rom and that is good info for me! Can you post a picture?

Anyways,

Check this link out. The file is double zipped...so add a '.zip' extension to the file within the archive and extract again.

https://www.evolutionm.net/forums/ec...nout-here.html

EVO 8 ECU pinouts are all over the place too. Just search through google.

 

Do you have an RHD car? if so it will have an 3 Plug ( 3 rows each ) Ecu. (Or at least the wiring loom has 3 Plugs )
If you have 4 Plugs at the ECU but only 3 in the wiring loom, than its an LHD car.
But it is not the same Ecu as the USDM / EDM Evo 9´s.
The 96940011 will be right for these UK/JDM Cars RHD

 

As evoredy said, it's possible that somebody had flashed an older rom into a newer ecu. One thing I'm sure of is that the ecu is USDM because its harness is LHD & has three plugs.

Thank evoredy for the link

 

The number on the processor ship in the ecu is MH8206F is this an evo 8 or 9?

 

Again, please post a picture of the ECU. Cell phone snap will be fine. Motherboard will be even better.

Seems like you don't have an EVO ECU at all. MH8206F is the USDM EVO 8 chip, but it does not carry a 3 plug form factor that I know of...correct me if I'm wrong.

SO...keep using the EVO 8 ROMS (256KB) and HOPEFULLY it matches the EVO 9 pinout. You will have to test things out or get the pinout from the manual of the donor vehicle.

Seems like someone has flashed a non-evo ECU with an 8 rom and called it good!

Good luck man.

 

The very same chip was used in a few Lancer Ralliart Ecus also.
These have 3 Plug locations ( Each plug has 2 rows of pins per plug )


The Evo 8 USDM/EDM Ecus have 4 plug locations, BUT 2 rows of pins per plug

The Evo 9 USDM/EDM Ecus have 3 plug locations, BUT 3 rows of pins per plug
The Evo 8 JDM/UK Ecus have 3 plug locations, BUT 3 rows of pins per plug

I am not talking about the wiring loom inside the car. I refer to the possible Plugs at the ECU´s

Please make some pictures.