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Why is the fault light not on when a China V vehicle is not using urea?

1 Answers

Dora

07/30/25 6:15am

The reason why the fault light is not on when a China V vehicle is not using urea is due to a blocked urea nozzle. Below is relevant information about vehicle urea: 1. Measures to take when discovering that a truck is not consuming urea: If it is found that the vehicle urea has not been consumed or the vehicle's emission light is on, it may indicate that the vehicle's SCR system has stopped working (commonly referred to as not 'burning' urea). This issue cannot be resolved by DIY methods and requires immediate professional inspection and repair at a 4S shop. Possible causes include a damaged urea pump, blocked urea pipeline, or nozzle blockage. 2. Consequences of a truck not consuming urea: Failure to add urea in diesel vehicles can have extremely adverse effects on the ecological environment and is also not permitted by national laws and regulations. This is not a direct impact caused by the lack of urea but rather because the engine's electronic control system will forcibly limit the engine's torque output when it detects no urea injection and excessive exhaust pollution. Damage to the SCR injection system: If there is no urea for a long time, the nozzles, pipelines, and urea pump in the SCR system may crystallize and become blocked or be damaged by high temperatures.

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