Hi all, i need some help i havea bad 02 sensor the code reads says its on bank 1 position 1 which side is that? is it the one inside the intake manifold

 

Front 02 on the cyl number 1 side.

 

how can i tell which side is the number one cylinder

 

On 5.0, its on the left front as you are looking at the engine. Also, look closely at the distributor cap (I'm assuming from you name it's a '94) there is usually a "1" on the number 1 cylinder plug wire marked on the dist cap.