I will check the Upper 02 readings in the morning. They should be ok all 4 sensors are brand new. the MAF is a Pro-M 75mm calibrated for the 24's that are in the car. If anything I would think that with that combo it would run a little rich. The IAT I noticed was ok today.. was reading temps around 90 degrees on a completely warm engine. The ECT sensor was reading around 211 degrees at hottest.
