I HAD A GAS TANK REPLACEMENT OVER A WEEK AGO, AFTER TWO DAYS MY CHECK ENGINE LIGHT TURNED ON. NOW WHERE MY MILES SHOW A GASCAP SIGN APPEARS.
GASCAP WARNING on 2006 Dodge Magnum
Take your car back to the repair shop that replaced the fuel tank. I would suspect that there is problem with the evap system on your 2006 Dodge Magnum. The evap is designed to catch and store fuel vapors, if the system is not sealed correctly the check engine light will turn on. There may be a vapor line that was not installed correctly or it could be that your gas cap is loose.