[Vermillion19SS]

Hmm, shouldn’t get a code if it was tuned properly. Permanent codes should clear after so many in spec sampling. Did you get a larger throttle body as well? I know some tuners have had problems with fuel/air, throttle body position, and timing either near idle at wot when replacing the throttle body - the supercharger could have just exacerbated the problem. Could be a problem with the throttle body’s electronics. I don’t like to throw tuners under the bus but it sounds to me like they have more work to do.

Additionally, I’m assuming they checked for air leaks? If everything isn’t sealed up and seated nice and tight you can get all kinds of problems. But it honestly sounds like the tune. I’ve seen a lot of tuners just throw a bunch of fuel at problems - especially around idle - to sort things out instead of properly dialing everything in.