If your customer operates a forwarder or harvester from the Komatsu Forest brand, you may eventually face AdBlue-related issues. When an exhaust emission after-treatment fault arises, it can bring your operations to a halt. A countdown timer begins, leaving you with just a few hours to resolve the issue or risk immobilization—often in the middle of a forest. Fortunately, we offer proven solutions that ensure you’ll no longer be affected by such problems. Our services are applicable to all Komatsu Forest vehicles compliant with Tier 4 emission standards, particularly Tier 4F.
Supported Engines and ECUs for AdBlue System Deactivation
AdBlue SCR system deactivation is available for Komatsu Forest vehicles that meet the EPA Tier 4F standard and are equipped with Bosch EDC17 engine control units. Supported AGCO engine models include:
- AGCO 49AWF
- AGCO 66AWF
- AGCO 74AWF
Supported Komatsu Forest Models
- Komatsu Forest 901.4: 6.6L AGCO, 150kW/201HP, EDC17CV41
- Komatsu Forest 911: 6.6L AGCO, 170kW/228HP, EDC17CV41
- Komatsu Forest 931.2: 7.4L AGCO, 193kW/258HP, EDC17CV41
- Komatsu Forest 931XC: 7.4L AGCO, 170kW/228HP, EDC17CV41
- Komatsu Forwarder 835: 4.9L AGCO, 127kW/170HP, EDC17CV41
- Komatsu Forwarder 845: 4.9L AGCO, 140kW/188HP, EDC17CV41
- Komatsu Forwarder 855: 6.6L AGCO, 170kW/228HP, EDC17CV41 or EDC17CV54
- Komatsu Forwarder 895: 7.4L AGCO, 214kW/287HP, EDC17CV41
AdBlue Deactivation Process for Komatsu Forest Machines
1. Fault Identification
We start by diagnosing faults displayed on the dashboard or through an AGCO EEM4 diagnostic tool. Each recorded fault event is documented to facilitate complete removal.
2. AdBlue System Virtualization
The following key modifications are implemented:
- Deactivation of AdBlue injection
- Correction and emulation of AdBlue levels
- Permanent deletion of fault codes
- Quality emulation for AdBlue
- NOx sensor emulation
- Removal of torque and power restrictions
- Removal of maximum speed limits
3. This comprehensive virtualization ensures the AdBlue system is neutralized, allowing your Komatsu machine to operate without restrictions.
Technical Details: Bosch EDC17CV41 & EDC17CV54 ECUs
The engine ECU, which manages AdBlue, power, and torque, can be accessed via the vehicle's diagnostic connector located on the engine. Our process involves rewriting the ECU's internal data with customized programming. This ensures the machine operates without torque or power limitations and eliminates countdown timers, all while disabling the SCR system.
Common AdBlue Fault Codes and Permanent Fixes
Direct intervention within the EDC17 engine computer allows us to resolve all engine faults that disrupt the normal performance of forwarders and harvesters. The most frequently encountered fault codes include:
- DTC Codes: 4090, 4332, 4360, 4363, 4364, 4374, 4376, 4792
- DTC Codes: 521002, 521007, 521008, 521018, 521019, 521020, 521025, 521026, 521027
Other codes are also addressed as needed, ensuring a complete resolution for your machine.
You can find these solutions on our file service platform https://fs.auto-remap.com/ in the list and create order for all options