Ford Fiesta ECU update? - Ford ECU Software - graham3232
Hi,

My 2003 Fiesta has not been to a dealer since 2005. I bought a cheap fault code reader which will read and clear the fault light no problem.

I have heard that Ford dealers have far more advanced readers that can give Ford specific codes that will not show up on other readers and that their readers/computers will update the ECU software?

Although there is nothing apparent wrong with the car and no codes show on my reader, would it be beneficial to get any ford codes read and ECU updated?

I' also told that disconnecting the battery for 10mins ‘resets’ the ECU and it then relearns all the settings as you drive?

Graham.
Ford Fiesta ECU update? - Ford ECU Software - mastertechGeoff

Not sure if the ecu can be updated on that model as it's the more recent models that can be, Yes there is a lot more info off the Ford system but as the saying goes " if it aint broke, don't fix it ! "