Hi Peewee1
welcome to the forum.
I had my 98 model 2.5 Omega for 11 years and had the ABS ECU fail 3 times during that time. It is a common problem. The first time it happened my local (Hinckley) garage quoted me 1200 quid to fix it. That was when I found this forum.
There is a good maintenance guide that shows you how to fix the problem. A fiddly job but just requires patience and a reasonable selection of tools.
You have several options
-Obtain a secondhand ECU off a breaker on here. Same type of car. I don't recommend that anymore as my last one cost 50 quid and lasted exactly a month before failing.
-Take yours off and send it to one of the ECU repairers. BBA Reman darn sarf or ECU Testing in Nottingham
- I have one I got reconned by ECU Testing but then never fitted it as I scrapped the car- 2.5 auto Elite. Another forum member is interested but if he doesn't have it you can have it for same price 100 quid including recorded delivery from Spain. It has the balance of the two year guarantee on it.
Any other problems just post up your questions.