Thanks for the guidance, i have spent some time now removing sensors and stuff. i managed to get the failure signal and the engine management light to not come on by removing the lambda sensors but it still ran a little rough although better. i took it for a small run to see how it would perform, after about 5 mins i had to stop for another car and the engine stalled. after firing it up again the motor control system failure came on again, it is still running better but not as it should.
i took the MAF apart and the sensor inside looked like it was in pretty good nick, the engine also seemed to run slightly better with the air intake pipe disconnected up to the MAF.
again any help would be much appreciated, thanks