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Home >> Jeep >> 2008 >> Wrangler Rubicon, Standard >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0430 To P0571 >> P0452-EVAP Pressure Switch Stuck Closed >> Possible Causes

Possible Causes

Possible Causes 
EVAP PURGE HOSE/TUBE AND FRESH AIR FILTER OBSTRUCTION
(K52) EVAP PURGE CONTROL CIRCUIT SHORTED TO GROUND
(K107) ESM SIGNAL CIRCUIT SHORTED TO GROUND
ESM SWITCH
EVAP PURGE SOLENOID
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.