P2003 OBD Error Code: Problem & Solutions
OBD Code P2003 - Diesel Particulate Filter Efficiency Below Threshold Bank 2
The trouble code P2003 can be elucidated as
Diesel Particulate Filter Efficiency Below Threshold Bank 2. It is a generic
diagnostic trouble code which would indicate there is some fault in the diesel
particulate filter. It would mean that the diesel particulate filter efficiency
has dropped below the given threshold for bank 2.
Learn More About OBD Error Code P2003
This trouble code is generic, which would mean that it can apply to all the vehicles which are equipped with the OBD-II or the vehicles which are made since 1996 up to the present. The specifications on the definition, the troubleshooting steps as well as repairs can always vary from one vehicle make to another. The diesel particulate filter is being monitored by the engine control module. This trouble code would be set by the ECM when the diesel particulate filter would not be as per the specifications set by the manufacturer.
What causes this problem with the Diesel Particulate Filter Efficiency Below Threshold Bank 2?
- There can be distorted DPF filter
- Imperfect exhaust pressure sensor
- Driving at less speed for a very long period of time
- Unnecessarily high sulfur content in the fuel
Replace/Repair These Parts To Fix Code P2003
- Exhaust
Gas Recirculation Valve – Bad EGR valve can
cause many performance issues. Common signs include engine performance issues
like decreased power and acceleration, rough idle, and the Check Engine Light
coming on. Thus, replace faulty EGR valve now!
- Diesel Exhaust
Fluid Pump – If the DEF pump will not function properly, it can cause increased
emissions in the exhaust system and reduced the longevity of the filtration
elements in the exhaust system. Thus, replace faulty pump immediately.
- Engine Control
Module - Dead cells in batteries can cause a
failure in the engine control module. Many times a battery is left in the rig
long after a cell has died. This would affect the grounding in the car battery.
- Powertrain Control
Module - If there are some faults in the PCM,
then it may throw off the timing and fuel settings of the engine, which can
negatively affect the performance. A flawed PCM may cause the vehicle to
experience a reduction in fuel efficiency, power as well as acceleration.
- Electronic Control
Unit - Do you know that the poor performance or unexplained drops in fuel
economy or efficiency are often associated to onboard car computer problems, or
defective ECU issues?
- Diagnostic Tools – Use factory grade diagnostic tools to resolve OBD code
P2003 error. Buy new diagnostic tools and equipment for us.
Symptoms Of The OBD Error Code P2003
You might be thinking that how would you diagnose these problems? We at Parts Avatar Canada would help you diagnose the major symptoms easily.
Common Symptoms
- Visibility in the check engine light
- There might be limited speed and engine performance if limp mode is enabled
- Decline in the overall fuel economy
How To Correct P2003 Diesel Particulate Filter 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:
- You
must refill the fuel
- Repair
or replace the quirky exhaust pressure sensor
- Carefully
adjust the faults in the diesel particulate filter
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Easy Diagnosis Of Engine Error OBD Code P2003
Here are some steps which you should follow in order to diagnose this fault code:
After verifying the P2003 code with an OBD-II scanner, the mechanic should begin with a visual inspection of all electrical components. The codes which are present should be noted down by the technician as well as the freeze frame data which is related to it. After that all the codes should be cleared up. Then a long test drive at freeway speeds should be done so that any particulate found in the DPF filter is burned. Now if you find out that the code is reappearing, then the next step would be to visually inspect the DPF or wiring for faults. After that the live engine data should be observed while the engine is operating and the throttle will be depressed looking for a change in the readings of the exhaust pressure sensor.
Common Mistakes When Diagnosing The P2003 Code
- A lot of mistakes are made if the diagnostic steps are not followed in the exact order.
- A most common mistake is to restore the DPF when it just needed to be driven at freeway speeds to clear the filter out.