Error Code P2001: What It Means & What To Do?
OBD Code P2001 - NOx Trap Efficiency Below Threshold Bank 2
The trouble code P2001 can be explained as NOx
Trap Efficiency Below Threshold Bank 2. This diagnostic fault code is a generic
powertrain code, which means that it would apply to the OBD-II equipped
vehicles. The specific repair steps can vary as it depends upon the vehicle
make and model. The engine control module, powertrain control module or the
transmission control module monitors this circuit depending upon the particular
automobile.
Learn More About OBD Error Code P2001
If the engine control module would detect a variation in the levels of NOx that is outside the parameters set by the automobile manufacturer, then it would store the P2001 error code. This would also give rise to the illumination of the check engine light.
What causes this problem with the NOx Trap Efficiency Below Threshold Bank 2?
- Faulty upstream exhaust
- Malfunctioning catalytic converter
- There can be inoperative oxygen sensors
- Mass air flow (MAF) sensor might be flawed
- Some issues related to the manifold air pressure (MAP) sensor
- Unusable coolant temperature sensor
- Imperfect fuel pressure regulator
- There can be distorted fuel injector
- Leakage in the intake manifold gaskets
- Engine misfire related issues
Replace/Repair These Parts To Fix Code P2001
- Exhaust Gas
Recirculation Valve - It is auto part
commonly found on many road going automobiles. It is a part of the vehicle’s
exhaust gas recirculation (EGR) system, an emissions system that is designed to
recirculate exhaust gases back into the vehicle’s intake so that it can reduce
cylinder temperatures and NOx emissions. Purchase top notch exhaust gas
recirculation valve from us at economical prices.
- Engine Control
Module - If there is any corrosion or breaks in the internal
wiring of the harness, then it can cause a short in the ECM or can also cause
corrosion in the ECM through the wiring harness. You can always rely on us
as we have best auto parts for our customers.
- Powertrain Control
Module - The onboard computer, or powertrain control module is the
brain of the engine control system. Now if the brain is not working properly,
then neither is the car engine. Get it replaced before the situation gets
worse.
- Automatic
Transmission Module - Sometime the transmission
module is unable to communicate or correctly anticipate the speed of the
vehicle and thus creates difficulty in gear shift leading to sluggish
acceleration, throttle response and stalling. Thus can also hamper a lot of
components physically and thus must be check for and replaced, if required.
- Fuel Injector - The
fuel injectors are important component of the fuel delivery system that helps
in proper utilization of the fuel entering the engine. This not only helps in
taking care of the air to fuel ratios in the engine, helping the combustion
process but also enhances the performance. Thus, replace faulty injector now!
- Electronic Control
Unit - Is your car jump starting on reverse polarity? Or are you
facing some intermittent starting issues? If yes, then it indicates that your
electronic control unit is bad. So it is very important to replace the
defective electronic control unit with us at equitable prices.
- Diagnostic Tools -
Buy quality diagnostic tools to check and diagnose OBD code P2001 error with
the help of experienced mechanic. Visit us today!
Symptoms Of The OBD Error Code P2001
There could be countless symptoms which that would accompany with this fault code. Willing to know some common symptoms of OBD Trouble Code P2001? Your wish is our demand. Have a look at them below:
Common Symptoms
- Check engine light might come into signal
- Diminishing fuel efficiency
- A lot of black smoke might start emitting from the automobile’s exhaust
- Declining engine performance
How To Correct P2001 NOx Trap Efficiency Below Threshold Bank 2 Issue
Looking
out for some ways with the help of which you can correct this fault code? Then
you have arrived at the correct place. We are here to help you out, so you must
check out the steps mentioned below as follows:
- Make
sure to mend the faulty coolant temperature sensor
- It
is essential to restore the flawed fuel pressure regulator
- Repair
or replace the quirky mass airflow (MAF) sensor
- You
must fix the defective exhaust system parts
- Rehabilitate
the defaults in the manifold pressure (MAP) sensor
- The
malfunctioning intake manifold gasket should be repaired or replaced as per the
need
- Carefully
adjust the faults in the catalytic converter
- The
fuel injector should be restored to working order
- Recondition
the non-functioning oxygen sensor
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get tensed if you are still facing any of these issues as we care for our
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Easy Diagnosis Of Engine Error OBD Code P2001
It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P2001 code to be stored:
First of all the mechanic should start by inspecting to see if your catalytic converter is still under warranty. You should know that the federal law mandates that catalytic converters carry a 100,000 mile warranty, regardless of the age of the automobile.
The exhaust should be inspected in front of the catalytic converter for faults. The mechanic should carefully fix the exhaust and the diagnostic trouble code P2001 should be retested.
Inspect all of the wiring and connectors for damage. Repair or replace damaged wiring and/or connectors as necessary and retest for diagnostic trouble code P2001.
The 20001 error code can be diagnosed by utilizing an OBD-II trouble code scanner.
A scanner should be used by a professional technician to notice the freeze frame data, to assemble details about the code.
The mechanic can also check to see if there is presence of additional trouble codes.
Now if there are a number of codes, then they should be addressed in the same order in which they are appearing on the scanner.
After that the mechanic should reset the trouble codes, restart the vehicle, and check to see if the code remains detected.
If it does not, then the code was likely triggered incorrectly, or represents an intermittent issue.
The mechanic should then start by checking the temperature of the catalytic converter. The car engine should be brought up to normal working temperature and an infrared temperature gun should be used to easily read the temperature of the catalytic converter.
Now if the temperature of the catalytic converter would be more than the specifications set by the manufacturer, then in that case the catalytic converter is faulty.
If the temperature of the catalytic converter is as per the specifications set by the manufacturer, then it is important to inspect the operation of the oxygen sensors that are positioned in front of the catalytic converter and behind it.
The live data should be viewed to observe the operation of the upstream and downstream oxygen sensors. If it is working properly, then the upstream oxygen sensor will give a voltage reading then quickly switches back and forth from .350 volts and .900 volts. A steady voltage reading of around .500 volts would be given by a downstream oxygen sensor which is working normally.
If the readings of the voltages of the upstream and downstream oxygen sensors would not be normal, then it would indicate that there is some fault in the oxygen sensors. Generally when there is a fault in the oxygen sensors, then an oxygen sensor diagnostic trouble code would also be stored along with the P2001 error code.
Common Mistakes When Diagnosing The P2001 Code
- There might be some other codes which are stored in the PCM along with the P2001 diagnostic trouble code and mechanic might not notice them, turning it into a big common mistake.
- Generally there is some other component due to which a failure in the catalytic converter has occurred, so it is very essential to diagnose these trouble codes carefully before restoring the catalytic converter.
- Many a times the mechanic might simply replace the oxygen sensors without being sure that they are defective.