Hi guys
my car was throwing up errors on bank 1 sensor 1 and bank 1 sensor 2 lambda sensors. After much hassle I managed to use a flexible wrench with a flexible extension bar to an O2 socket to remove the sensor from the top of the engine bay and replace it, definitely bank 1 - as it was nearest to the front of the car, black lead, however, after replacement, and resetting the service light, it promptly came back and logging in MHD shows the same odd readings from this lambda sensor-
http://datazap.me/u/threetirtyfive/3...g=0&data=17-23

now the guy who sold me the car said that the modified program it was running was causing the lambda sensors in bank 1 to report faulty, BS I thought so I set about replacing them. Admittedly I only replaced b1s1 as I was more concerned with the AFR than the function of the cat, but perhaps his story wasn't wrong and it's indeed the program, anyone ever heard of this before?
I had the fuelling checked whilst it was on dyno and it was fine, not too lean or rich, so I guess it's all being controlled off bank 2 right now. Also no idling issues, no hesitation, car makes good power.