2005 mustang with codes p-2196,p-2198 4.0 liter

Question

runs rough cold and some times  no start cold

Answer 1

P2196 Lack of H02S switch , sensor indicates rich (Bank 1 Sensor 1)

P2198 Lack of H02S switch , sensor indicates rich (Bank 2 Sensor 1)

Do a MAF (mass airflow) sensor cleaning , this may help , running rich condition are usually condition that a mechanical condition , low compression. and a mechanical condition should be ruled out