OK. I've got a code indicating a lean condition fron the #2 o2 sensor. I disconnected the mils and battery and put it all back and started the car-nothing came on. I took it on the highway and gave it hell and drove it the rest of the day-no light. Got ready to leave work - light!

If the mil is bad will it throw this particular code or is the o2 sensor bad?

Which one is the #2 sensor, the guy at auto zone had no idea.

any help is appreciated!!!

 

Ive heard reports of peoples cars running lean after removing cats, bigger throttle body and upper intake, ect. The tuner that dynoed my car recommends getting a dyno tune when those modifications are done. Stock program cannot compensate adequately for increase of air flow.