1) Is the Narrow Band still in place and Functioning in the Right Pipe, or was it replaced with the Wideband. And is the Wideband then feeding a Sig to the ECU? 2) Do you see the Idle as Rich when Cold? 3) Do you see the 'Cycling' of the AFR's when in Cruze Mode, ranging 14 to 15 ? 4) is the Idle Mode Lean?