Ran the car with the chip removed frm the ECU, with no change at all, initially that was what the problem was thought to be

EDIS unit, whats that mate, sorry for my ignorance, but certainly not that clued up on the car at the moment

The car is only running 12 psi of boost at the moment and the fueling is a little rich, and the tuner never seemed overly concerned about using it with the problem,