Hi Every one This is my first post Got A4 very slow pulling away as if clutches slipping diplay lights flashing , drove car for 5 miles , as I went round left hand long bend al of a sudden lights went out and allstarted to perform correctly , when I parked up and went back to car it was back to no power !!!! Retrieved codes 18226 pressure control valve 2 p1818 short to ground 17114 gear ratios monitering incorrect gear change p0730 intermitant. Any body had same probs possible loom rubbed through?????