What to Do When Urea is Not Consumed and Torque is Limited?
1 Answers
The methods to address the issue of urea not being consumed and torque being limited are as follows: 1. Check whether the post-processing wiring harness and sensors are properly connected, and make adjustments or repairs if any issues are found. 2. Inspect the urea pipeline for any leaks or abnormalities, and replace it promptly if necessary. 3. Verify the normal operation of the urea pump; if any malfunction is detected, promptly investigate the cause of the fault. 4. Examine the urea nozzle to ensure it is functioning correctly; if the nozzle is clogged or fails to open properly, clean or replace it immediately. When a vehicle does not consume urea, the problem often involves not just one fault code but a series of fault codes, requiring systematic troubleshooting. A service station diagnostic tool can be used to check the relevant codes. If the vehicle does not use urea or uses products of insufficient purity or inferior quality, the engine's torque output will be limited. Additionally, inferior-quality urea can contaminate the catalyst in the SCR catalytic reaction tank, leading to severe consequences. Therefore, it is essential to use high-quality urea products. If it is found that the vehicle is not consuming urea, timely maintenance should be performed.
