Assassin

iTrader: (3)

could a bad o2 cause the ltft's to be at +20, I swaped the front and the rear o2's on the pass. side and I was getting misfires and the ltft bank 2 was at 20+ about 90% of the time, I only drove it about 5min though, no exhaust leak's iether, I checked before I let the car down, anybody know?, btw.. what is bad AIR system bank 2?