"False" trouble codes may cause erroneous illumination of the Check Engine Light. Updating the PCM software can often correct this concern.Google+
Car Problem Reports
Dodge Charger Software Updates For Powertrain Control Module to Address Erroneous CEL
Dodge Charger Problem
Model Year Affected: 2006
Exhaust & Emissions Affected: V6
Visitor, 2006 Dodge Charger, 34,000 mi
They did a diagnosis check and they had my car for two days. The same thing happen about a week later and I just don't have time to waste on the going to shop. It is still on at 67000.