P014E OBD-II: O2 Sensor Slow Response - Rich to Lean
P014E Severity
Will P014E go away on its own?
Once the vehicle's onboard system no longer detects the issue, most codes will disappear on their own. If your vehicle still has this code, however, it should be properly diagnosed to avoid a more serious problem.
For a proper diagnosis, RepairPal Certified shops have the equipment, tools, and expertise.
Moderate severity codes might not threaten the vehicle's safety or functionality immediately, but you should still get it diagnosed within a reasonable time frame to keep your car running well.
What causes OBD-II fault code P014E?
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 P014E.
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OBD II Fault Code
- OBD II P014E
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 P014E.
Decreased engine performance Symptoms
- Decreased engine performance
- Increased fuel consumption
Common Problems That Trigger the P014E Code
- Oxygen sensor failure
- Powertrain Control Module (PCM) failure
- Wiring issue
Common Repairs Needed for the P014E Code
Ask our experts about P014E.
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