My gauge has been always reading random numbers, none past 20.2, only sees a 20.1-20.2 when i let off throttle. My tuner said while he was tuning my car and he had his o2 sensor he said that the right exhaust bank would give him weird readings. I dont know if this could be the problem, i have tried even recalibrating it and nothing. What do you guys think ?

 

Im pretty sure i just read another thread on this issue. I'll try and find it for you.

 

I'm pretty sure that when you tune, you're supposed to use the driver's side bank as it reads a bit leaner than the passenger side.

As for your issue, I haven't the faintest idea.