2009 ford flex code p0021

Question

2009 ford flex engine light misfire code given was p0021

Answer 1

P0021 This condition is caused by the intake  camshaft phaser, and this code will exhibit a misfire condition, What Ford did to resolve this code condition is to improve the camshaft phaser,  You are to inspect the phaser part number , if this does not have the updated part, the updated part is required to resolve this code condition Ford produced a TSB about this code condition TSB # 11-6-1