Hi everyone, I am new here. I recently bought a 2006 sts4 with the v8. Two daysago i took the air ffilter out of the air box to see what it looked like. It was really cloggedup so i put it back in with the iintention of replacing it shortly. I started the car the next morning and the engine light was on. I did not notice it driving any different. I took the car to had the codes check. There was like 8 of them. I don't remember them all but I know bank 1 and 2 were lean, the man sensorwas rreading g low air and a bunch of other codes. The guy said they were all relatedto tthe air cleaner being bad. I replaced the air clean and everything has gone down hill. Since then, the car has been running bad. When under a medium load, the motor would cut in and out and surge. The car has eve been stalling out on me out of no where. Please help me guys. Car has only 50k miles on it.