[DiZzyBonne]

So I have an exhaust leak, and my car is throwing the P0153 code, which is bank two's first sensor.

OBD-II Trouble Code: P0153 Oxygen Sensor Circuit Slow Response (Bank2, Sensor1)

Anyway, should I just buy the O2 sensor for that specific piece, or should I do all four of 'em? My car has 46,000 miles. Also, should I get OEM Motorcraft O2 sensors or like NGK or Denso or Bosch something like that? Can somebody link me to the correct part?

Another thing, what's the part number for the passenger-side gasket that connects the manifold to the X-pipe?

Thanks!

 

[Bullitt 736]

Mine front left went and I replaced both with Motorcraft. Made the car run like new. i did not change the back ones.