Hi, we've had two golf fsi's in, one yesterday and one today, both with the same fault code. P1388, haven't found too much information, other than possible ECU or throttle body fault?

One source said possible water ingress into ECU (in bulkhead scuttle area) which isn't full of water though slightly wet.

Just wondered if anyone had encountered this code before seeing how we seem to have it on two cars?

Regards, John.