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Error Code P014E: What It Means & What To Do?

OBD Code P014E - O2 Sensor Slow Response - Rich To Lean (Bank 2 Sensor 1)

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If you are experiencing unusual response of the throttle, lack of power forms the car engine, impact on the fuel economy and frequent illumination of the Check Engine Light, it might be an indication of the OBD Code P014E error.

 

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

Learn More About OBD Error Code P014E

The ECM (Engine control module) relies on the Heated Oxygen sensors (HO2S) to attain a specific air to fuel ratio. The HO2S detect oxygen content in the exhaust and the information is passed to the ECM which uses this information to adjust the fuel delivered to the engine. A Heated Oxygen sensor contains a circuit dedicated to operating a heater that warms up the Oxygen sensor fast. This shortens the time the engine needs to achieve closed loop, which decreases emissions.

 

When more oxygen is present in the exhaust (lean condition), the voltage signal from the O2 sensor is low and this when detected by the PCM, will store and flash OBD code P014E error.

 

What causes the problem of O2 Sensor Slow Response - Rich to Lean (B2 S1)?

 

  • Faulty ECM that might require replacement or reprogramming
  • Heater circuit fuse blown
  • Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 faulty/damaged
  • Open Shorted Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 harness that needs replacement 
  • Poor electrical connection of Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 circuit that are to be replaced

Replace/Repair These Parts To Fix OBD Code P014E

  1. Powertrain Control Module - P014E error code also relates to problems with the powertrain that affects the engine control module and the transmission module. Find all the Powertrain related parts with us.
  2. Oxygen Sensor Cable - Inspect for faulty sensor cables that don’t allow the sensors to function properly and replace them immediately, if faulty or damaged. Buy new sensor cable from us now!
  3. Exhaust Manifold - Check for leaky and damaged exhaust manifolds that may affect the engine power along with affecting the fuel economy and leading to engine stalling and stopping. Thus replace/repair them now!
  4. Ambient Air Temperature Sensor - Faulty sensor may cause engine overheating and affected fuel efficiency along with Malfunction Indicator Lamp On. Thus, replace it now!
  5. Catalytic Converter - Catalytic converters are important to keep in check the emissions and the air intake and fuel delivery systems. Replace faulty converters now!
  6. Exhaust System - Check for faulty exhaust system and parts as it affects the back pressures and affect the engine performance. Replace them now!
  7. Mass Air Flow Sensor - Wrong information sent by the MAF sensor will affect the air intake system and fuel delivery system thus hampering the air to fuel ratios and hence the performance. Thus, it is advisable to replace them in time.
  8. Throttle Position Sensor - If faulty, TPS can lead to lowered engine power, rough idles and stalling. Thus, check for the problem and resolve it immediately.
  9. Diagnostic Tool - Use high grade diagnostic tools to detect and solve OBD errors. Buy from us now!

Symptoms Of OBD Error Code P014E

With the OBD Code P014E, the car will still run but you will notice the illuminated Check Engine Light on the dashboard as a noticeable symptom. Vehicle may run rough with reduced fuel economy too.

 

Common Symptoms

 

  • Increase in time needed to achieve closed loop
  • Check Engine Light illumination on dashboard
  • Possibly decreased fuel mileage depending on fault

How To Correct P014E O2 Sensor Slow Response - Rich to Lean (Bank 2 Sensor 1)

Following are the ways to correct the OBD Code P014E error problem.

 

  • Replacement of Bank 2 Sensor 1 circuit
  • Repair/Replace damaged/short/open wiring
  • Changing Bank 2 Sensor 1 fuse
  • Replacement of ECU
  • Replace/repair PCM
  • Replacement of Heated Oxygen Sensor and connectors

 

At Parts Avatar Canada, find the best quality replacement parts and the best prices in the market for all makes and models. Find PCM/ECM components, electrical wiring and components, air fuel ratio gauge/meter, oxygen sensor cleaners, electronic control units, air intake manifolds and more.

Easy Diagnosis Of Engine Error OBD Code P014E

  • Put the OBD-II scanner in vehicle's OBD-II port to confirm presence of P014E error code.
  • Freeze frame the data and vehicle speed, operating temperature, engine speed, and operating time is checked for when the code was detected.
  • Perform a road test with a scan tool installed in the OBD-II port to confirm an issue is present.
  • Visually inspect the wiring on both oxygen sensors for damaged/broken wiring, swapped connectors, or wiring shorted to ground or power. Use a multimeter to check that no wiring the distorted or short.
  • Poor quality replacement catalytic converters are susceptible to repeated failure and should be avoided and replaced with a quality one.
  • Search technical service bulletins (TSB) in your vehicle information source. If you find one that matches the symptoms and code/s presented by the vehicle in question, it will very likely aid you in your diagnosis. TSB listings are compiled from thousands of successful repairs.
  • If the engine is running efficiently, upstream O2 sensor data should fluctuate regularly between 1-millivolt (.100-volts) and 9-millivolts (.900-olts). If voltage fluctuations are slower than expected, a P014E will be stored.
  • Check for the faults with the car’s ECU (Engine Control Unit) and replace if needed.

 

Common mistakes when diagnosing the P014E code

 

It is important to follow the step by step analysis of every component associated with this error code to properly diagnose this problem and avoiding it from returning again. Simply replacing the major parts without examining the cause will lead to misdiagnoses and won’t fetch the desired results. 

 

  • Parts that are necessary to diagnose code P014E correctly getting skipped
  • Replacing the sensor without doing proper analysis of the problem
  • Simply replacing the Powertrain Control Module
  • Not checking for faulty wiring and connectors to the sensor in the circuit

Other Diagnostic Codes Related To OBD Code P014E

P014C - O2 Sensor Slow Response - Rich to Lean (Bank 1 Sensor 1)

P014D - O2 Sensor Slow Response - Lean to Rich (Bank 1 Sensor 1)

P014F - O2 Sensor Slow Response - Lean to Rich (Bank 2 Sensor 1)