I just bought this car the only mods I know are the obvious cat back and cai. First off car ran perfect it had a shake at idle which I thought was normal. Connected new diablosport I tune i3 it said diablosport tune already exists. I went ahead and saved the current tune and installed 91 octane tune car would start and idle for about 10 seconds tried to reinstall the saved tune and same thing. Cel light for rich fuel on banks A&B. Talked to diablosport and updated everything still same thing. They told I would have to get a custom tune. What if it’s had a cam swap anyway to know? Any ideas where to go from this point?