Error Code P014E: What It Means & What To Do?
OBD Code P014E - O2 Sensor Slow Response - Rich To Lean (Bank 2 Sensor 1)
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
- 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.
- 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!
- 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!
- Ambient Air
Temperature Sensor -
Faulty sensor may cause engine overheating and affected fuel efficiency along
with Malfunction Indicator Lamp On. Thus, replace it now!
- Catalytic Converter - Catalytic converters
are important to keep in check the emissions and the air intake and fuel
delivery systems. Replace faulty converters now!
- Exhaust System - Check for faulty exhaust system and
parts as it affects the back pressures and affect the engine performance.
Replace them now!
- 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.
- 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.
- 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
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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