The following are known Action Replay Codes for NASCAR Heat 2002 on Nintendo Game Boy Advance (GBA).
These codes were also known as GameShark Codes and in most cases will work on both devices.

These codes are for the U.S. version of the game.

Master Code – Must Be On
6205f5c3
789c74e0
5174a2cb
b7adc065

Start on Lap 10
722e2bee
591ddecf
6f57dad2
89da5fb2

Max Race Points
08f86f15
12992e20