Ongoing seems more apt!
There is some great information in the archives on this fault.
I would be surprised if an ECU update would sort this. It seems a bit too ancient for this I think.
Would anyone else have any experience with calibration updates on cars of this vintage?
Message Thread 
Ford Fiesta 1.25 Zetec 1999 - High engine revs, speed sensor? # - Ian Waring March 20, 2014, 8:08 pm
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