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I have a 2009 Challenger SRT8 with magna flow exhaust, headers, supercharger an cant get my O2 sensors to pass after installing a new battery. I have 87 warm ups since cleared, over 1000 miles driven and all my )@ sensors are showing voltage be 0.0 and 0.9 cycle. I'm showing no codes. Any suggestions? if a senor is bad, I get a code, correct? Could it be possible that I have sensor(s) bad causing my problem but not getting codes?