Hi guys, I bought a second hand ECU to do tests and to be able to use it in my car for development and the first thing I have done is to deactivate the INMO using bootmode.

When viewing this image from a ME7.1:

https://s4wiki.com/mediawiki/images/0/00/ME7.1-bootmode-info.png

I thought it would be useful to have something like this in my ECU ME7.5 (06A906032DR) and this is what I have come up with (attached)

It works, because I've been able to bootmode, and delete the inmo whit 95040Tool - eepromtool (awesome tools) but is this correct?

After deactivating the INMO when going to test the ECU in my car, It starts but goes to 3 cylinders, I thought that the software could be wrong and I have flashed an stock soft
and also tried to interchange the coils but same, it works only with 3 cylinders. Putting my original ECU remapped by a commercial Chiptuner the car works fine and with the 4 cylinders.

Is a very rare failure, can the ecu be broken?

Thanks

If you have a working immo in another ECU why not clone that? I'd verify that the injector and coilpack is working in the bad cylinder.