hi all, im new to the forum and ive a strange problem with my engine management. ive just had the cambelt changed and it was done as a foreigner by a qualified lexus mechanic. the timing is spot on and after it was done i drove the car approx 50miles and it was sweet as a nut. the next time it was started i drove approx 3 miles and the management light came on. it was plugged in and it came up with a valve timing issue. it was reset and the car was drove for approx sixty miles without any probs at all. The following day i was 5 miles down the road and the light came on again. Any ideas anyone? many thanks