Why Is the Check Engine Light on a Dodge Dart Flashing?
A flashing MIL on the Dart means the PCM detected an active misfire that can overheat the catalytic converter. The most common reasons include ignition coil failure, fouled spark plugs, MultiAir actuator issues (1.4L turbo) or fuel delivery faults.
- First steps: Reduce throttle, scan for codes (usually P0300–P0304), log freeze-frame data.
- Diagnostics: Swap coils/plugs, inspect boost hoses (1.4L), verify fuel pressure, check MultiAir maintenance.
- Repair: Replace faulty components, clean throttle body, and ensure valves/cam timing are within spec.
- Reset: Clear codes with a scan tool after repairs; drive a mixed cycle to confirm trims stay normal.
See the comprehensive Dodge Dart CEL guide for troubleshooting details.