P2270 engine code

[Jacob12521]

My car drives fine if I’m casually driving but as soon as I start to get on the accelerator, the car starts bucking. If I push it hard enough the cel will come on. Read the code and it read 4 misfires across 4 cylinders and a P2270 engine code for 02 sensor stuck lean bank 1 sensor 2. Is it a good chance that the sensor just needs to be replaced?

 

[Diggs24]

Post cat sensor cause your misfires? No.

Could be a litany of things. Needs carbon cleaning, plugs, coils, bad injectors, bad pcv, air leak, etc....

Log the car and get some data.

 

[EpicTech]

^Beat me to it.

*Edit: If you can't get a log or just in a big hurry, check your intercooler couplings for a loose/detached coupler. Just a guess.