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Home >> Jeep >> 2016 >> Wrangler Rubicon, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P2135 To U1418 >> Diagnosis And Testing >> P2271-O2 Sensor 1/2 Signal Stuck Rich >> Possible Causes
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Possible Causes

Possible Causes
EXHAUST SYSTEM LEAK
O2 SENSOR 1/2 SIGNAL CIRCUIT
O2 SENSOR 1/2 RETURN CIRCUIT
O2 SENSOR 1/2

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