The following are known Action Replay Codes for The Land Before Time: Great Valley Racing Adventure on Sony Playstation (PS1).

The codes should work with the region specified but may work for other regions as well.

Device Compatibility: Action Replay, CodeBreaker & GameShark

Start On Last Lap
d005d8d00000
8005d8d00002

Have Speed Burst
8004d6f00001

Press L2 For Traction
d007770afeff
80083b4acb09

Unlock All Obstacles
8005d8eeffff

Stop Timer (Obstacles)
8004d7240000