Through advanced filtration technology and high - quality materials, we ensure that our DPFs meet the most stringent environmental standards helping to improve air quality and protect the environment.
Through advanced filtration technology and high - quality materials, we ensure that our DPFs meet the most stringent environmental standards helping to improve air quality and protect the environment.
One, three-way catalyst is bad
1. General vehicle fuel consumption increase, accelerate weakness, speed increase difficulty or even start difficulties and other faults, should first check the working condition of three-way catalyst, usually after cleaning or dredge three-way catalyst can restore normal fuel consumption and power.
2. Soon after the vehicle starts, there will be obvious red burning phenomenon between the exhaust manifold and three-way catalyst.
3. When the vehicle fuel door can be heard "hesitate" air leakage sound or "grumbling" abnormal sound and so on.
4. Idle or accelerate can smell pungent, smelly odor, if the exhaust analysis will find that nitrogen oxides (NOx) seriously exceed the standard, to clean and repair in time;
5. The normal working three-way catalyst, the temperature of the front part of the catalyst is lower than the rear temperature, if the front part of the three-way catalyst is higher than the rear temperature, it means that the catalyst is not working properly.
6. The common fault of three-way catalyst is blockage and functional failure, if the blockage will cause poor exhaust leading to insufficient power, if the functional failure of three-way catalyst will lead to excessive exhaust emissions, with OBD engine control system will light the fault light of the exhaust system.
7. Three-way catalyst Xun is bad, directly cause high fuel consumption, power decline, computer fault.
Two, how to detect the three catalytic blockage system
1. Take off the air filter, in situ accelerator, see if it is from the air filter to the outside of the black smoke, yes, it is blocked.
2. Feel the temperature difference before and after the three-way catalyst to determine whether the blockage, the temperature difference is blocked.
3. Check whether the voltage of the oxygen sensor before and after the three-way catalyst fluctuates greatly.If the fluctuation is large, the three-way catalyst is damaged.That is, the three-way catalyst is blocked or burned because of the engine fire.
4. Put your hand into the exhaust pipe to see if you can feel the airflow, if you can not feel it, it is blocked.
5. When the test car can not reach the highest speed, poor acceleration, this is also the possible performance of the three-way catalyst blockage.
