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Home >> Fiat >> 2014 >> 500 Turbo >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (1.4L - I4 Non-Turbo - DTCS P0016-00 To P0354-00 - 500 & 500C) >> Diagnosis And Testing >> P0133-00-O2 Sensor 1/1 Slow Response >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
EXHAUST SYSTEM LEAK OR RESTRICTION
INTAKE SYSTEM LEAK OR RESTRICTION OR RESTRICTION
FUEL PRESSURE TOO LOW OR TOO HIGH
FOULED OR LEAKING FUEL INJECTOR
O2 SENSOR
POWERTRAIN CONTROL MODULE (PCM)

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