running lean

[95mustangswild]

i pulled codes off my 95 mustang 3.8 and its saying running lean in bank 1 and bank 2


can the oxygen sensor cause this,

 

[ChingonStang]

Yes, I had problems with my 96 3.8 O2 sensors which caused issues with my air/fuel ratio.

What kind of exhaust setup do you have?

 

[95mustangswild]

my exhaust is stock for right now

 

[95mustangswild]

i get under my car, there is 2 oxygen in the front and 2 in the rear, im trying to find the 2 oxygens sensors that are causing bank 1 and bank 2 running lean, does anyone know which ones they are,