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Home >> Dodge and Ram >> 2011 >> Durango R/T, RWD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0141 To P0335 >> Diagnosis And Testing >> P0159-O2 Sensor 2/2 Slow Response >> Possible Causes

Possible Causes

Possible Causes 
EXHAUST LEAK
(K243) O2 2/2 SIGNAL CIRCUIT
(K904) O2 RETURN DOWNSTREAM CIRCUIT
2/2 O2 SENSOR

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

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