Game Shark problem with GT3!
 

I don't know if it's just the game shark I have or what, but I can not get the instant win to work. And when I do the 1 lap = win code in Simulation mode, it will not work on a series race. Just on the individual races.

I don't have time to play those 15 lap series races so I got the game shark to get through those parts quicker. It does not work. Any ideas?

The FAQ section of the gameshark manual said if too many codes are turned on, it may not work or load.

I had a different problem with GT3. Turned on all the license and some other codes. It wouldn't load. Then when I reset and the gameshark got to the point where it scrolls, "Loading list please wait..." and as it goes to the second time of the message, it stopped part ways and it froze. Luckily I've just bought the gameshark at Target for $29.99 and was able to exchange it for another one.

Spy Hunter codes gave me problems too if I turned on all the mission completed codes. The game froze on the cheat menu to turn on SuperSpy code. But after I only turn on the agent 1 all missions code, it worked fine.

Got Thunderstrike: Operation Phoenix at costco.
Using the gameshark codes, the game only loaded the first "2" screens and just blacked out. So only left the master code on and infinite armour on with the same result. Wonder why this code wouldn't work.

Either the gameshark is buggy, turn off codes or maybe the game is a different version like 1.1 as opposed to 1.0 and the codes are only for 1.0.