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Home >> Chrysler >> 2009 >> 300 C, RWD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0315 To P0461 >> P0440-General EVAP System Failure >> Possible Causes
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Possible Causes

Possible Causes 
EVAP PURGE SOLENOID VACUUM SUPPLY
EVAP SYSTEM LEAK
EVAP PURGE HOSE/TUBE OBSTRUCTION
(Z914) GROUND CIRCUIT OPEN OR HIGH RESISTANCE
(K107) ESIM SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE
EVAP PURGE SOLENOID
EVAPORATIVE SYSTEM INTEGRITY MONITOR (ESIM) SWITCH
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See  DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure  .