P0315

Built tune flashed tune no codes... Figured what the heck while I'm in here I'll rebase the crank (bad me for fixing something that wasn't broken)
2011 Mustang Gt setting code p0615 after successful relearn will not clear... Have tried relearn multiple times. Found an old thread that talked about this being in the 3.7 beta in 2017. I'm running 4.4...any advice?

It won't go away. PCM will work fine tho. Turn that code off and move forward.

Oh yeah overall the tune is killing it... Gotta get rid of some pesky knock here and there but overall it seems quite giid