Read all about it in the maintenance guide Omega speedometer not working; ABS/ TC lights on.
thanx guys going to try the clean up first on the sensors on all four wheels first see what happens
Given your symptoms that has little chance of working ...
![Sad :(](http://images.omegaowners.com/forum/smf2000/Smileys/oofstd/sad.gif)
This is a known fault inside the ECU, the only remedy is repair or replace.
Repair by BBA-REMAN cost around £130 about 4 years ago, do a google for them then phone for latest price, service is fast and has (had) a 2 year warranty. No Tech2 or reprograming needed as the ECU is "yours"
Replacement needs either the same engine/transmision AND model year or it needs a tech2 session to programme to your car. New from Vx is basically silly money, a 2nd hand one may well be about to suffer the same internal failure .... you take the chance I guess.
Work is fiddly not hard, access is the problem, empty the swearbox before you start !!!
Driving without the ECU gives certain problems ... no ABS, No Speedo, No power steering, and probably no insurance if they found out .... I only did 4 miles in mine without the ECU and said enough ... the ECU was back within 5 days anyway.