Hi,
We carried out a calibration update on this vehicle. This completed sucessfully but after a road test a fault appeared of P1639 Vehicle ID Block Not Programmed Or Corrupt and the vehicle wouldn't rev more than about 3k. I've seen this before where the axle and tyre size aren't programmed correctly after an update and sure enough these were wrong so I programmed them in.

The car will now not start at all. The PATS light comes on when you turn the key on and then goes out as it should. There are no fault codes.

Even more strange is the mileage is ticking up when the ignition is switched on!

How can changing the tyre/ratio parameters have such an effect???? I haven't had chance yet to check for the feed going to the starter but it seems strange that it ties in with the mileage.

The update was at the request of the customer whilst it was being serviced - Ex ford chap thinks he knows best. To be fair I've done updates for various reasons before and never had this.

Any ideas?
Thanks!
Matt