Hi All,

Asked to attend this car because EML, EPC and service light on. This has been the case for about 8 months and drives well. Only perceived problem is fuel consumption which according to on board computer and rough calculations is working out at about 26 - 30 MPG on long runs. Car is not being thrashed. All the usual checks including emissions provide nothing unusual except fault code PO601 (Internal Control Module Memory - Checksum error). All three warning lights clear down but EPC light and fault code re-appear when vehicle is re-started. I have asked the customer to ignore computer for fuel consumption and to work it out in the traditional manner which he will do and get back to me in a few days. I suspect a re-flash is required. Would be grateful for any inputs.

Regards

Pete M