The urea injector, also known as the Adblue injector, is a core component of the SCR system, responsible for precisely injecting urea solution into the exhaust system to reduce nitrogen oxide emissions in diesel vehicle exhaust.The following are the symptoms of the failure of the 9802763880 urea injector Adblue injector:
1. Abnormal urea consumption
Urea consumption drops sharply or reaches zero: Injector blockage or circuit failure may cause urea to be unable to be ejected, and the urea level does not drop or drops extremely slowly on the instrument panel.
2. The engine fault light comes on
When the urea injector is clogged, stuck, or has a circuit failure, the vehicle's OBD system will detect an abnormality in the exhaust gas treatment system and immediately illuminate the engine fault light.
3. The instrument indicates a urea system failure
When the urea injector is open-circuited, short-circuited or mechanically stuck, text prompts such as "Urea system failure" and "Adblue injector failure" will be directly displayed on the instrument panel to facilitate quick location of the problem.
4. Power reduction and torque limitation
Clogging, stuck or circuit failure of the urea injector will cause the urea solution to be unable to be injected normally, and the SCR system will not be able to effectively reduce nitrogen oxides.
5. Urea crystal blockage
Long-term poor injection will cause the urea solution to crystallize and deposit on the nozzle, pipeline or catalytic converter carrier, forming a hard block. The symptoms include abnormal pressure in the SCR system and louder working sound of the urea pump.