So I've had my 07 Mustang GT for a bit over a year now. It has always shifted pretty rough on a cold start but after a few shifts it always got better. Now a few months later my car starting accelerating unevenly but again, only when I first start driving. My CEL came on and gave me a P2195 (Sensor 1 bank 1 O2 Sensor code) this came as a surprise because my car only has 29k Miles on it and it only acts funny for the first couple of minutes of driving. Please give me your suggestions, I just want the problem fixed.

 

Clear the code.
If it comes back with the same code.
Swap the sensor with a factory OEM sensor.