Exhaust After Treatment System (EATS) Training – DPF & SCR Diagnosis Course

DPF (Diesel Particulate Filter) blockage is one of the most common BS6 issues.

• What is DPF and how it works
• Causes of DPF choking
• Symptoms of DPF blockage
• Back pressure analysis
• DPF differential pressure sensor working
• Scan tool diagnosis of DPF faults

You will understand real workshop-level troubleshooting methods.

DPF regeneration is essential to clean soot accumulation.

• Passive Regeneration
• Active Regeneration
• Forced Regeneration
• Manual Regeneration using Scan Tool

You will learn when and why regeneration fails.

Step-by-step practical guidance on:

• Conditions required for regeneration
• Using scan tool for forced regeneration
• Safety precautions
• Monitoring temperature sensors
• Post-regeneration verification

This is highly practical and workshop-focused.

“SCR Efficiency Low” is a very common BS6 fault code.

• SCR system working principle
• Role of DEF (Diesel Exhaust Fluid)
• NOx sensor feedback system
• Causes of SCR efficiency failure
• Step-by-step troubleshooting process
• Live data analysis for SCR faults

Proper DEF dosing is critical for emission control.

• SCR dosing injector working
• DEF pump operation
• Performing SCR dosing test
• Checking dosing quantity
• Diagnosing dosing failure

• Causes of urea crystallization
• Cleaning procedures
• Prevention methods
• DEF quality importance
• Blocked dosing lines / injector malfunction / SCR malfunction

• DEF injector operation
• Electrical testing of DEF injector
• Resistance checking
• Signal verification
• Cleaning & maintenance

• EGR valve working
• EGR cooler function
• EGR clogging issues
• Symptoms of EGR malfunction
• Cleaning & diagnosis procedures

• NOx sensor working principle
• Upstream & downstream NOx sensors
• Signal analysis
• Sensor testing with scan tool
• Replacement & calibration basics