Error Code P2463: What It Means & What To Do?

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As with any filter, they ‘filter’ or trap particles, in this case harmful diesel exhaust soot particles, so they have to be emptied regularly to maintain performance. The DPF needs to be cleaned regularly, through a process called regeneration, either active, passive or forced regeneration, the accumulated soot is burnt off at high temperature (around 600°c) to leave only a residue of ash, effectively renewing or regenerating the filter, ready to take on more pollution from the engine.

When the PCM notices that a lot of soot has accumulated in the diesel particulate filter in the emission control system, OBD code P2463 gets stored in the system.

Every vehicle type & engine combination can have differing reasons as to why the filter blocks. The rate of particulates generated by the engine, the quality of the fuel, quality of the or oil, driving style, even the location of the DPF in the exhaust system can all contribute to the filter blocking or not regenerating fully.

Generally, the problems arise in around town stop start driving where the regeneration process might not complete. A warning light will illuminate or a message indicating the DPF is full displays on the dash. If you continue to drive in the same manner, the soot build up will increase until other warning lights illuminate and the vehicle will go into ‘limp’ mode, where driving speed is restricted.

What causes this problem with the Diesel Particulate Filter Soot Accumulation?

• A faulty SCR system
• A malfunctioning SCR injector
• Dirty or inadequate DEF fluid
• Damaged exhaust temperature sensor
• A defective SCR controller or a programming error
• Leakage in the pre-catalyst exhaust
  
• Wrongly installed aftermarket or high-performance exhaust components

1. Engine Control Module – ECM faults are rare but can be a big problem as faulty ECM will cause wrong vehicle operations and can also result in wrong OBD codes getting stored in the system which can also cause misdiagnosis. Thus, replace faulty ECM components now!
2. Powertrain Control Module – Check for PCM error which might be due to circuit faults that might require complete replacement and reprogramming. Replace it now!
3. Diagnostic Tools – Buy quality diagnostic tools to check and diagnose OBD code P2463 error with the help of experienced mechanic. Visit us today!
4. 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!
5. 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.
6. Diesel particulate filter - A crammed and contaminated diesel particulate filter leads to problem with the functioning of the cooling fans, a slight increase in the fuel consumption and the engine performance. Log into Parts Avatar for your new fuel injectors available at just the right prices.
7. Exhaust Temperature Sensor - Is your engine overheating? Spending too much on gas lately? Well, all this likely to be caused due to your faulty exhaust temperature sensor. So in order to get rid of the error code P2463 and all these complications, change or repair your exhaust temperature sensor now. Tune into Parts Avatar!

It is essential to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P2463 here:

Common Symptoms

• Decreasing engine performance
• Black smoke emission from the vehicle exhaust
• Fall in the fuel efficiency
• Storage of other codes related to emission

Here are some ways with the help of which you will be able to correct the OBD Code P2463.

• Repair or replace a damaged DPF and associated parts
• Make sure a dirty or inadequate diesel exhaust fluid is corrected in the right away
• Amendments should be made to fix a defective SCR controller or a programming error
• A damaged exhaust temperature sensor should be mended or restored
• Ensure there are no leakages in the pre-catalyst exhaust. If you find one, it should be repaired or replaced immediately
• Adjust a wrongly installed aftermarket or high-performance exhaust components

There is no need to be anxious as Parts Avatar – Car Parts Online is here to help you out! We have high grade PCM, Diesel Particulate Filter, ECM, Exhaust Pressure Sensor, Diesel Exhaust Fluid, Exhaust System, Exhaust Gas Temperature and a lot more for our precious customers.

Here are some steps which you should follow in order to diagnose this fault code:

Follow vehicle manufacturer’s handbook on procedure to unblock the DPF. It should be possible to start a complete regeneration and clear the warning light simply by driving for 20 minutes or so at speeds greater than 60klm per hour.

At this point you should also add a single 100ml dose of DPF Cleaner to a full tank of fuel, then drive as normal. This should clear the warning light within the first few hundred kilometre.

Add a second dose with the next tank of fuel if necessary. If you ignore the light and keep driving in a relatively slow, stop/start pattern soot loading will continue to build up until around 75% filter capacity, then you can expect to see other dashboard warning lights illuminate too. At this point driving at speed alone will not clear the blockage and the car will have to go to a dealer for evaluation and possibly a forced regeneration.

We see more evidence of these systems failing to regenerate, even on cars used mainly on motorways. It seems that on cars with a very high sixth gear engine revs are too low to generate sufficient exhaust temperature. Occasional harder driving in lower gears should be sufficient to burn off the soot in such cases.

If it is not successful, or the warning repeatedly comes on you should visit your mechanic, they can carry out a test to see how badly the filter is blocked & check if the pressure sensors are working correctly. Remove the filter from your car & replace with a changeover filter. Get the filter cleaned with ultrasonic cleaning. Finally, replace the filter with a new DPF filter.

Common Mistakes When Diagnosing the P2463 Code

It is important to understand that there can be many other factors causing this problem rather than directly blaming the injection system completely. Always check for faulty wirings, and fuses as well as air injector sensor and DEF parts for error too. Take help of professional mechanic to solve OBD code problem as this will ensure avoidance of misdiagnosis and can also help to reduce the costs associated with the repairs.

• Reductant air injector pressure sensor failure
• Reductant pump control system failure
• Powertrain Control Module (PCM) failure
• Wiring and connector issues in relation to the sensor and circuits
• Damaged or clogged DEF pump