Throwing a code

Hey guys, since I got my cams installed, I started throwing a code:
P0306 Falt CY 6 MSFR DET CY 6
I think it's saying I'm misfiring on cylinder 6.

Any help would be appreciated. I gotta take it back to the dyno as my tuner said that he could clean up the tune and make it a more efficient tune. If it does turn out I'm misfiring, can he fix that? I've heard maybe some new coils and or sparkplugs could remedy the situation.
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