| Re: Calibrating the VR3 O2 Sensor I just got a response from Al Wright at Delta P. He seems to confirm my suspicions that once you set the C4 code, you must calibrate as if you have a CCR. You can set the calibration gas to Air and do the calibration, but you have to go into CCR mode to set the gas and perform the calibration. I'll let everyone know how it works. Thanks all for your input. |