Which section is the three-way catalytic converter B1?

[MelanieAnn]

The three-way catalytic converter B1 is the middle section at the lower end of the exhaust pipe. Below are the specific details about the three-way catalytic converter: 1. Function: The three-way catalytic converter is a purification device for the engine. Whether it functions properly determines the engine's fuel consumption, power, emissions, and other working conditions. 2. Symptoms of failure: If it becomes clogged or malfunctions, exhaust emissions will exceed standards, and the engine's performance may be affected. Common symptoms include increased fuel consumption, poor acceleration, unusual noises from the exhaust pipe, and unpleasant exhaust odors. 3. Cleaning interval: Generally, the three-way catalytic converter should be cleaned every 30,000 kilometers. It is also advisable to clean the three-way catalytic converter before an annual vehicle inspection to ensure passing the emissions test smoothly.