ok so before i put my z away for the winter it started running like pure crap, it woud cut and sputter at any rpm and under acceleration and even cut out and get back in at a constant speed, so my friend is a chevy mech and i had him read the codes and they came back as bank 1 sensor1, which is 02 sensor on driver manifold. im sure i hope im not mistaken, so i got a new sensor and replaced it and the car ran good for about 2 mins then started cutting and doin the same stuff that it did, does anyone have any ideas?

 

did you scan it again and have the same code come up?

 

now its throwing a po300 which is random cylinder missfire, which that is causing the 02 to throw a code because of the missfire, so now i get to replace plugs and wires.

im sure its not the opti, car has under 40k and i have the newer vented styl, but it could use new plugs anyway

 

my opti took a dump after 40k miles too bro...something to look into. gotta remember that your car is 14 years old

 

yes very true, my buddies did about 30k after he replaced it, well il do the plugs and wires first cuz im sure it could use some since they are origina to, and if it still does it then il check out the opti

 

fixed it, plugs and wires, runs like a champ again