ok mine is fixed. As I said customer previosuly fittwe ECP throttle body . So I was assuming fault is in ecu or ecu software. Done both of and EAC light is gone but still hunting and cutting out. Check the wiring etc- all good. I said to the customer'I think it is trottle body but genuin eon eplease' He look for me ... Few days later phone call - car fixed new genuine throttle body fixed the problem. I love ECP - they bring me so much work . Heheheeh. thanks guys for your help.