sods law... took it to the garage showed him the light, no worries I'll scan it and get back to you. he dropped me off at the tube in my car so he could see how the engine was and low and behold as soon as he turned the ignition the light went out and has never come back on... I can only think it was a batch of poor petrol...
my problem now is the turbo not kicking in... or if it is defo loss of boost.... he's having a look at it at the weekend...