Started off for work today both the t/c and engine management light came on and the car was really low on power,Turned ignition off ,restarted and car ran fine apart from still had management light on.When I got to work, turned ignition on and off loads of times which cleared the engine management light.Coming home no engine manegement or tc light came on and car ran fine.Any ideas where I should be looking, have ordered an opcom to check the stored fault