i just got a cel for my o2 sensor my first thought was to just go grab a new one but iv been thinking is there a difference. in 1.5 & 1.6 im running a pm6 with a pm5 o2 sensor

is that the reason im getting a cel or ?

 

no difference...i recently got a code 1 and it was due to lose wiring...re-did the wiring and havent had a problem since...keep in mine that im also using my old d15b2 o2 on my zc sohc...!!!