EGR REMOVAL
At EJP Motors, our EGR (Exhaust Gas Recirculation) removal tuning service involves advanced ECU reprogramming to eliminate the EGR function while ensuring your engine operates at peak efficiency. We adjust critical parameters, including:
- Fuel Injection Timing & Duration
- Ignition Timing Maps
- Air-Fuel Ratio Targets
- Boost Pressure Control (for turbocharged engines)
- Removal of EGR-related Diagnostic Trouble Codes (DTCs)
Key Adjustments for EGR Delete:
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EGR Duty Cycle Maps
- Function: Controls EGR valve operation
- Modification: Set duty cycle values to zero under all conditions
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EGR Flow Maps
- Function: Regulates exhaust gas recirculation
- Modification: Zero out flow values
-
EGR Temperature Maps
- Function: Monitors recirculated exhaust temperature
- Modification: Set thresholds to indicate no recirculation
-
EGR Position Maps
- Function: Tracks EGR valve position
- Modification: Set valve to remain closed
-
DTC Maps
- Function: Stores EGR-related fault codes
- Modification: Disable or remove EGR-related fault codes
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EGR Adaptation Maps
- Function: Manages EGR adaptation values
- Modification: Reset or disable these values
Important Notes:
- For most vehicles, setting the EGR duty cycle maps to zero and removing corresponding DTC codes resolves the issue.
- Disconnecting the high-pressure EGR actuator can also be a solution, combined with deleting all associated PCodes.
- It’s advisable to ensure the EGR valve is fully closed for optimal performance.
Benefits of EGR Removal:
- Improved Throttle Response & Acceleration
- Increased Horsepower & Torque
- Enhanced Fuel Efficiency
- Reduced Carbon Buildup in the Intake Manifold
- Extended Engine Lifespan
How the EGR Valve Affects Your Engine:
The EGR valve is designed to reduce NOx emissions by recirculating exhaust gases into the combustion chamber. This lowers combustion temperature, reducing NOx production. However, in diesel engines, the exhaust gases contain soot, which leads to carbon buildup in the intake system, reducing airflow and engine efficiency over time.
Disadvantages of the EGR System:
- Soot accumulates in the intake manifold, EGR valve, and connected hoses.
- Over time, this soot buildup restricts airflow, resulting in a loss of power and increased smoke from the exhaust.
- Soot deposits can prevent the EGR valve from closing properly, causing unmetered air (false air) to enter the system, leading to further performance issues.
- High repair costs can arise from cleaning or replacing the EGR valve and intake manifold.
Our Solution:
At EJP Motors, we offer a permanent solution to these issues through software modifications that disable the EGR system entirely. We remove all related error codes from the ECU, ensuring no warning lights appear on your dashboard. In severe cases where the EGR valve cannot be closed via software, we can physically cap the valve, ensuring a complete closure.
Process:
- Software-Only EGR Removal: This service takes 30–60 minutes.
- EGR Valve Capping and Software: If capping is necessary, we’ll need the vehicle for half a day, and the additional cost will depend on the complexity of the work.
Common EGR-Related Fault Codes:
- P0400: EGR Flow Malfunction
- P0401: EGR Flow Too Small
- P0402: EGR Flow Too Large
- P0403: EGR Valve Defective
- P0404: Circuit Performance Issue
- And more...
Additional Services:
We also offer removal of other problematic systems and features, such as:
- AdBlue
- DTC Error Codes
- Lambdasonde
- Start-Stop Systems
- Speed Limiter
- NOx Sensor
- Immobilizer
Improve your vehicle’s reliability, efficiency, and performance today with EJP Motors' professional EGR removal and tuning services!
