hesitation and 02 code

[garylee1974]

i have a 95 grand am 2.3 it hesitates and keeps throwing a 02 sensor circuit code replaced 02 sensor and replaced cat due to it was hollow still having the same problem any help would be great

[3100]

the problem could be in wiring from O2 sensor connector to pcm. Maybe open or intermittent short/open?

what code you get?

[Camarogirl77]

Originally Posted by garylee1974

i have a 95 grand am 2.3 it hesitates and keeps throwing a 02 sensor circuit code replaced 02 sensor and replaced cat due to it was hollow still having the same problem any help would be great

I am having the same exact problem with my 96 2.4 and did the same thing. Did you ever find a resolve for this?