P1449: Evaporative Check Solenoid Circuit Malfunction

HighPowertrainEVAP System

What does P1449 mean?

P1449 is a diagnostic trouble code indicating "Evaporative Check Solenoid Circuit Malfunction". A component in the evap system has been flagged as malfunctioning by the vehicle's ECU. This requires diagnosis to determine whether the part itself has failed or if there is a related wiring or control issue.

Common causes

  • Faulty evap system component
  • Wiring or connector issue in the related circuit
  • Failed sensor providing incorrect readings
  • Software/calibration issue requiring ECU update
  • Related component causing secondary fault

What should you do?

This is a significant issue that should be diagnosed and repaired soon. Avoid long trips or heavy driving until the problem is resolved. Continued driving may cause additional damage.

Get a diagnosis for YOUR car

Code P1449 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.

Download on iOSGet on AndroidUse on Web

Related codes

P1451Evap Emission Control Sys Vent Control Valve Circuit
P1446Evaporative Vac Solenoid Circuit Malfunction
P1445Purge Flow Sensor Circuit High Input
P1444Purge Flow Sensor Circuit Low Input