Common Causes of a Dodge Dart Check Engine Light
When the Dart’s MIL illuminates, the PCM detected a fault in ignition, emissions or turbocharging. Frequent culprits include:
- Misfires from failing coils or worn spark plugs (P0300–P0304).
- EVAP leaks such as loose gas caps or cracked purge hoses (P0456).
- Turbo underboost from boost leaks or wastegate issues on the 1.4L MultiAir (P0299).
- Throttle or sensor correlation faults when the throttle body is dirty (P2110/P0123).
- Thermostat issues causing low coolant temperature (P0128).
Always scan for DTCs, repair the underlying fault, and clear the MIL with a scan tool after verification. Complete a drive cycle to reset readiness monitors.
For detailed troubleshooting, visit the Dodge Dart check engine guide.