Car Tuned - Now Faulty Start And Misfire??!!!

[JDMHVN]

Alright.. So I finally got my car tuned at AMS about a month and a half ago ('99 GSX.) Its been running great since then at 22psi (You can check my profile to see the other mods.) One day I filled up with gas and went to start my car and It wouldnt stay running. It would fire up and then fumble out right away. Its been doing that for about a week now, but it only does it when the motors warm; once its cooled off it starts right up and usually runs fine until I go to start it again. Its throwing some code and my check light comes on and off so I know I gotta scan that but I'm just wondering if anybody could sense something obvious. One of my friends said it could be the CAM ANGLE SENSOR , but how can I tell for sure?

 

[WC819]

Scanning it would be a good thing

 

[assault187]

See what the code is, It may be your problem....

It may be a sensor but hard starting when warm is somtimes related to a H/G problem