P2195 Lincoln

Question

Hi, my 2006 Lincoln ls check engine light came on with p2195 code.my mechanic replaced all 4 oxygen sensor and 8 new coils but the check engine light is still on, the car is running fine better than before, because before the car was idling very rough and losses a lot of power and also the muffler was not breathing at all it sound like it was suffercate

Answer 1

P2195 - 02 sensor signal lean Bank 1 sensor 1

Vacuum leaks can cause this code condition especially at the PCV valve. , Do a MAF cleaning with a throttle body cleaning this may help for this code condition