3. Discussion on Fault Examples

During the process of engine regeneration, various malfunctions may occasionally occur. These faults not only affect the efficiency of regeneration, but may also cause potential damage to the engine. Therefore, in-depth analysis and exploration of fault cases are of great significance for improving the robustness and safety of regeneration operations.

4. Discussion on Fault Examples

During the process of engine regeneration, we occasionally encounter some confusing fault phenomena. For example, if a new car suddenly cannot press the accelerator, the engine appears weak, and the malfunction light also lights up. Such a malfunction not only affects the normal use of the vehicle, but may also cause potential damage to the engine. Therefore, conducting in-depth analysis and exploration of these fault cases is particularly important for improving the robustness and safety of regeneration operations.

Unveiling the Repair Process

Faced with the dilemma of being unable to accelerate during the delivery of a new car that meets the National VI standard. On the dashboard, the engine malfunction indicator light and DPF carbon load indicator light flash simultaneously, revealing potential faults.

Connect the L235S diagnostic tool for fault code reading, and the system displays:

P246385

The particulate filter (DPF) is overloaded with adsorbed particles and is currently malfunctioning

P2463F0

The particulate filter (DPF) has an overload trend in adsorbing particles and needs to be reminded to regenerate. The current fault is

P244C7C

Exhaust temperature external control cycle reaction time too long, historical faults

From the fault code, it can be seen that there is an excessive accumulation of soot particles in the DPF particulate trap, which has exceeded the system regeneration request value. Forced regeneration is required through L235S. After forced regeneration, both the engine malfunction light and carbon load warning light went out, and the vehicle returned to normal state.