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Home >> Jeep >> 2016 >> Wrangler Sport, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P2135 To U1418 >> Diagnosis And Testing >> P2273-O2 Sensor 2/2 Signal Stuck Rich >> Possible Causes
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Possible Causes

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

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to . 

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