red03evo

iTrader: (20)

I was thinking the same thing regarding the o2 sensor however how long have you had your wideband also? maybe that was going bad.

I'm not sure but bump for help...

Evo H8

iTrader: (3)

2 months for both!

SRT-TO-EVO

iTrader: (12)

If it was your front 02 you're car won't even want to idle (ask me how I know). Also, you'd be throwing like 3 codes for it (oxygen sensor bank 1 no activity, too lean etc.).

YzBrad99

Yea my car does the same crap when its warming up. No boost leak. Stock BOV recirculating. I have a anti-fouler on my 2nd stream 02 sensor thats plugged into my DC sports down pipe. Although im getting 16 mpg. When it gets kinda warmer out towards like 60 degress when i shift at high RPMS and slam it into the next year the car coughs then clears up and goes. Im sure its probably not tuned correctly, although AMS swears it is. When i feather the throttle/slipping the clutch while trying to climb a slight incline and push the clutch back it the car starts chugging like crazy. Feels like its not getting enough gas at idle. Pulled the code and it said Bank 1 too lean. In other words the car is getting less fun to drive, i need re tune, but shouldn't have to pay for it.

SRT-TO-EVO

iTrader: (12)

That's your o2, you need a new one.

YzBrad99

Ill get a new one, and we will have to see!