As above, MIL on, P0505 jerking and rough running, occasional stalling.

Interestingly if the fault is cleared with the engine running at 1500, it goes smooth for a few seconds before the MIL comes back on and the rough running returns.

I have checked in archives and the suggestion seems to be that the ECU may be duff.

The throttle body appears to have been replaced recently and the running issues are not affected by disconecting either the MAF or the EGR valve.

It runs smoother at low speeds (1500-2000) with the electrical conector to the throttle body disconnected (But more poorly at higher speeds, which is not surprising)

Is there any way of confirming ECU failure without actually replacing it (Expensive, and I am not sure I have the programing equipment nececary)

I have also seen suggestions that a "Reflash" might help. Is this likly?

Paul