2018 eco diesel DPF 100% will not regen

[Witty270]

Have tried to get to regen and took to dealer they can't get it to regen what's the best way to clean the filter any help is appreciated thanks

 

[fmatiella]

Have tried to get to regen and took to dealer they can't get it to regen what's the best way to clean the filter any help is appreciated thanks

Have tried to get to regen and took to dealer they can't get it to regen what's the best way to clean the filter any help is appreciated thanks

Help me out guys. What is regen, what does it do, and what is it for?

 

[John Jensen]

Help me out guys. What is regen, what does it do, and what is it for?

Definitions
EGR
Exhaust Gas Re-circulation (EGR) is a nitrogen oxide (NOX ) emissions reduction technique used in gasoline and diesel engines. EGR works by recirculating a portion of an engine's exhaust gas back to the engine cylinders.
DPF
Diesel Particulate Filter (DPF) is a device designed to remove diesel particulate matter or soot from the exhaust gas of a diesel engine.
SCR
Selective Catalytic Reduction (SCR) is an advanced active emissions control technology system that injects DEF (Diesel Exhaust Fluid) through a special catalyst into the SCR of a diesel engine.
-------------------------------------------------------------------------------------------------
EGT sensors:
EGT 1 is Pre-Turbo (EGT, located on the exhaust manifold collector
EGT 2 is DOC Inlet/Turbo Outlet (the most accurate turbo temp
EGT 3 is DPF Inlet (active regen)
EGT 4 is SCR Inlet (SCR\DEF Process – located mid SCR
-------------------------------------------------------------------------------------------------
Active regeneration - is triggered when the DPF exhaust back-pressure reaches a certain back pressure point and is interpreted as 65-66% soot for the Ecodiesel. Then the ECU initiates a fuel injection designed to increase the exhaust temperature in the DPF to over 662 degrees F in order to oxidize the particulate deposits. When completed, the ECU assumes a small amount of residual soot and resets the value to 9%.
The Ecodiesel trigger point is 65% soot. (EGT3 sensor). An Ecodiesel will likely Regen every 100-300 miles.

Passive regeneration - occurs when the load and speed of the engine produce DPF exhaust temperatures greater than 662 degrees F, and it burns off the trapped DPF soot as the vehicle operates. Most Generally, the EGT’s do not get hot enough for a passive regen at unloaded speeds, thus, most trucks may never see a passive regen. However, when towing, carrying a full load, or driving hard the EGT’s can reach passive temps and perform a passive regeneration. (EGT3 sensor)

Selective Catalytic Reduction\DEF Process - When NOx reaches a certain level DEF is injected into the SCR (EGT4 sensor) to remove NO2/NOx. NOX levels trigger the DEF injection and also determines the quantity of DEF.

 

[inteladovcate]

Do I need egt1 if I'm deleted and tuned EGR,dpf, scr deleted

 

[1shadowsabre]

Do I need egt1 if I'm deleted and tuned EGR,dpf, scr deleted

Your question can only be answered by your tuner really... It depends on what functions and sensors they turned off.


If you're deleting and tuning your EGR, DPF, and SCR, you may still need an EGT1 sensor. While deleting these components is common for performance gains, you might need the sensor for a tune that monitors exhaust gas temperature for safety and optimization.

Here's a more detailed explanation:

• EGT1 sensor:
  .
  An EGT1 sensor (Exhaust Gas Temperature 1) measures the temperature of exhaust gases.
  
  
• DPF delete:
  .
  Deleting the DPF (Diesel Particulate Filter) involves removing the filter from the exhaust system.
  
  
• EGR delete:
  .
  Deleting the EGR (Exhaust Gas Recirculation) system removes the cooler, valve, and associated components.
  
  
• SCR delete:
  .
  Deleting the SCR (Selective Catalytic Reduction) system removes the SCR converter, and urea injection system.
  

Why you might need EGT1:

• Safety and optimization:
  Many tunes rely on EGT1 data to ensure the engine doesn't exceed safe temperature limits during performance modifications.
  
  
• Tune compatibility:
  Some tunes may require EGT1 readings to properly function or to optimize performance.
  
  
• Long-term engine health:
  Monitoring EGT1 can help prevent damage to the engine, especially with increased power and performance.
  
  
• Emissions compliance:
  In some areas, EGT1 sensors might be necessary for passing emissions tests.
  

In summary:
While deleting EGR, DPF, and SCR is common, you should still consider whether you need an EGT1 sensor, especially if you're planning to tune your vehicle for performance gains. It's important to check with your tuner or consult with experts to ensure the EGT1 sensor is necessary for your specific setup.