How to Determine if a Three-Way Catalytic Converter Exists?

1 Answers
StKimberly
07/29/25 7:46pm
Methods to check the existence of a three-way catalytic converter mainly include checking sensor voltage, whether the maximum speed can be reached, and whether there is airflow. The details are as follows: 1. Check the sensor voltage of the three-way catalytic converter: Check whether the voltage of the front and rear sensors of the three-way catalytic converter is the same. If they are the same, it indicates blockage or damage; if not, it means the three-way catalytic converter exists. 2. Whether the maximum speed can be reached: Press the accelerator to the bottom and see if the maximum speed can be reached. If it can, it indicates the presence of the three-way catalytic converter. 3. Check the airflow: Place your hand near the exhaust pipe to see if there is airflow. If there is airflow, it means the three-way catalytic converter exists.
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