Misfire from bad 02 sensors?

[MyEarsHurt]

Okay, so I pulled the codes off of my stang today, rich in bank 2 oxygen sensor, lean in bank 2 oxygen sesor, and #3 cylinder misfire. The people at Murrays said the misfire may be from the 02 sensors. Is this possible? I bought new 02 sensors but I wanted to know if the people at murrays are full of crap before I install them. Please help, I dont want to waste my money on 02 sensors if I dont have to.

Oh btw, I replaced all the plugs, and plug wires last week, so I dont think thats causing the misfire. I didnt replace my coil packs though, could that be the problem?

 

[Joel's98GT]

Okay, so I pulled the codes off of my stang today, rich in bank 2 oxygen sensor, lean in bank 2 oxygen sesor, and #3 cylinder misfire. The people at Murrays said the misfire may be from the 02 sensors. Is this possible? I bought new 02 sensors but I wanted to know if the people at murrays are full of crap before I install them. Please help, I dont want to waste my money on 02 sensors if I dont have to.

Oh btw, I replaced all the plugs, and plug wires last week, so I dont think thats causing the misfire. I didnt replace my coil packs though, could that be the problem?

O2 sensors won't cause a misfire in 1 particular cylinder, replace the O2 sensor on the front, driver side, reset the computer, and drive it a while and see if any problems persist. most misfires i have seen in modular cars have been plug or plug wire related.

 

[MyEarsHurt]

So if its not the 02 sensors, and its not the plugs and plug wires then could it be the coil packs? I need some more input because I dont want to let the problem persist. The strange thing about it is that it has only had 2 misfires in the last 6 weeks and none prior to that, that I know of. So any other input would be appreciated. Thanks.

 

[Joel's98GT]

So if its not the 02 sensors, and its not the plugs and plug wires then could it be the coil packs? I need some more input because I dont want to let the problem persist. The strange thing about it is that it has only had 2 misfires in the last 6 weeks and none prior to that, that I know of. So any other input would be appreciated. Thanks.

i personally would start from cheapest and work my way up, you know you need an O2 no matter what, so get that. after that, check the plug, wires, you can buy a cheap set of packs on e-bay or online, no problem.

 

[CrimsonCobra_01]

my car did the same crap, it turned out 2 coils were bad and they were expensive. but warrenty covered it. it will be either coils or plugs so find the bad cylinder and switch coils and see if it works, then you know its bad