Solve problems and error code 2040 (EGR) Albach.
Summary of the situation
The problem encountered concerns an Albach Diamant 2000 equipped with a MAN engine, a wood chipper, which shows several symptoms such as a loss of power and emission-related error codes, including communication problems on the CAN bus. These symptoms may indicate problems with the machine's emission control system, which could have adverse consequences for performance, durability and the environment.
Description of defects
Error code 8134 FM2 indicates a reduction in power due to low nitrogen dioxide emissions. This may be caused by a malfunction in the NOx emission reduction system, which generally uses an SCR catalytic converter.
Code 4548 FM4 indicates a problem with the EGR solenoid valve, which may be caused by a valve failure or an electrical problem with the valve control circuit.
DTC 3819 FMI8 indicates a communication problem on the CAN bus used to communicate between the machine's various systems, often caused by an electrical problem or failure of the emission control system.
Error code 4069 FMI1 indicates power limitation due to excessively high exhaust emissions, caused by malfunction of the exhaust emission reduction system, which usually uses an SCR catalytic converter.
Error code 8121 FMI2 indicates a problem with the EGR valve, which may be caused by a valve failure or an electrical problem with the valve control circuit. It results in Error Code 2040 (EGR) Albach.
Error code 3830 FMI4 indicates a problem with the NOx sensor located behind the SCR catalytic converter. This may be caused by a sensor failure or an electrical problem with the sensor control circuit.
How do you eliminate each code and CAN fault feedback?
As an ECU programmer, it is possible to suppress emissions-related error codes in the EDC17 engine ECU of the Albach Diamant 2000, so that they are not displayed on the dashboard and the element in question is deactivated. To do this, it is necessary to access the machine's EDC17 engine ECU software, which can be used to modify engine operating parameters, including those related to emissions.
The method consists of using ECU diagnostic software to remove error codes directly from the engine ECU. This method involves modifying the software parameters to deactivate the elements in question and prevent error codes from being stored in the ECU, thus making error codes like Albach Error Code 2040 (EGR) disappear.
Stops adblue consumption and SCR gas treatment
To deactivate the gas aftertreatment system, it is necessary to modify the engine mapping parameters to suppress the control signals from the sensors and exhaust gas management devices. This may involve deactivating certain functions of the aftertreatment system, such as particulate filter regeneration or selective catalytic reduction (SCR) using urea. Indeed, deactivating the gas aftertreatment system and NOx sensors can lead to the suppression of information sent by these devices on the machine's CANbus network. This can prevent the detection of potential problems in the emission control system and the failure of one of the system's components.
Programming the motor unit
Programming the engine control unit is done using the bench method, i.e. without opening the engine management ECU, but simply by connecting to its PINs. We flash the ECU's memory to inject the data we've modified. Once the data has been written, the machine can run again without any fault on the dashboard, and without any restriction of torque or power. The limp mode concerning emissions is thus definitively eliminated.
Also available for Volvo Penta
