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Home >> Fiat >> 2017 >> 500 Lounge, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 38 (1.4L Turbo - DTCS P2116-00 To U1463 - 500) >> DTC Troubleshooting >> P2271-00 O2 Sensor 1/2 Signal Stuck Rich >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
EXHAUST LEAK
FUEL SYSTEM RELATED ISSUES
O2 SENSOR 1/2
POWERTRAIN CONTROL MODULE (PCM)

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

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