P014C - OBD II Trouble Code

Our automotive experts have put together the following information about the P014C diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P014C code.

OBD II Fault Code

• OBD II P014C

OBD-II Code Decreased engine performance is defined as a O2 Sensor Slow Response - Rich to Lean

The purpose of the oxygen sensor is to measure the oxygen content in the exhaust gases after they leave the combustion process of the engine. The engine control module (PCM) is constantly adjusting the amount of fuel delivered to the engine based off of the oxygen sensor's signal. If the PCM does not see the Oxygen sensor reading constantly changing with the fuel adjustment, it will set code P014C.

Decreased engine performance Symptoms

• Decreased engine performance
• Increased fuel consumption

Common Problems That Trigger the P014C Code

• Oxygen sensor failure
• Powertrain Control Module (PCM) failure
• Wiring issue

Common Repairs Needed for the P014C Code

• Oxygen Sensor Replacement