DTC P1450: EVAP System Malfunction, Excessive Leak Detected: Condition

DTC is set when PCM detects fuel tank pressure is low after engine is started in cold condition and vehicle speed is less than 59 MPH. Possible causes are:

• Purge solenoid malfunction.
• Canister Drain Cut Valve (CDCV) malfunction.
• Tank Pressure Control Valve (TPCV) malfunction.
• Vent cut valve malfunction.
• Charcoal canister malfunction.
• Clogs or leakage in system hoses.
• Two-way check valve clogged.
• Fuel tank pressure sensor malfunction.
• Engine Coolant Temperature (ECT) sensor malfunction.
• Vehicle Speed Sensor (VSS) malfunction.