Cadillac Deville Throttle Body Clean

Before I Replace The Cassette For A Cylinder Three Misfire Code Might My Problem Be Carbon Build Up. Have Cleaned The Throttle Body. Also...

I Cleaned The Throttle Body And The Aic Because The Car Would Not Excel When I Stepped On The Gas

I Was Wondering If I Could Clean My Throttle Body With Purple Power. If Not How Else Could I Clean It. Thanks.