my o2 sensor is reading 3.37 with a full open throttle, im getting the reading from my apexi turbo timer, i believe it is hooked up correctly because it gives an average reading at idle. is this a normal reading for the 7mgte? i also had the engine boared out to a 3.2 L, so is it a bad sensor or do i have to get the ecu remapped? the other thing is how accurate are the stock boost gauges and how do they get the reading? thanks for your time.