Engine Management Light

[naylor1401]

Hi, I've posed a few questions on here before. My head gasket went recently, I found this out because i was losing water and the oil had turned to like a white yoghurt. Anyway, before i had the head done, the engine management light was coming on. What happens is, i can be driving and when i start to slow down, the engine management light comes on and when the revs get low, the car will cut out. If i catch it in time, i can rev it high and it will carry on running perfectly but with the engine management light still on until i turn the engine off. I recently also had the radiator changed, the radiator switch, the cambelt and the thermostat. does anyone know why this engine management light is coming on?

Thanks

Pete