EFIDynoTuning Forum

cool, snap a photo of the ecu tag so I know which stock file is supposed to be on it. Post back your SN for your xcal as well when you get it.

Ok, last question, is there any risk ?

risk? of what?

Bricking the pcm

Its not possible to brick the ecu. The xcal could corrupt out during a write and cause issues but unlikely so long as your battery voltage isn't low.

If that's a real concern for you then your only option is to get a mongoose ford pro and pcmflash. Details are on the homepage under the getting started write up.

Ok i have a new battery. I will go for the x4 and worst cases i will have to buy a mongoose ford pro.

Just to be sure. The calibration files and the operating system has been modified.
The x4 can modified the calibration files in that case ?

Not exactly, it cant modify the existing only write a new one.

My X4 serial i just received : X40310216EDE3
Here is the photo of my ECU in attached file. Thanks a lot for your help.

Do you have all the information you need to find the tune ?

Thanks