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Home >> Dodge and Ram >> 2011 >> Durango R/T, RWD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P1593 To P2302 >> Diagnosis And Testing >> P2273-O2 Sensor 2/2 Signal Stuck Rich >> Possible Causes

Possible Causes

Possible Causes 
OXYGEN SENSOR WIRING OR CONNECTORS
O2 SENSOR SIGNAL CIRCUIT
O2 SENSOR RETURN CIRCUIT
2/2 O2 SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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