🚗A P420 code indicates low catalyst system efficiency and malfunctioning downstream sensor. A dirty cat is often the culprit.
💰Replacing a catalytic converter can be expensive, especially for older cars with high mileage. Alternative solutions can save you money.
⚙️Using catalytic converter cleaners like Cataclean can improve efficiency and reduce emissions. Follow instructions carefully for best results.
🚧Spacer installation can trick the downstream sensor and prevent the check engine light from coming on. However, this is not recommended and may be illegal.
😂This video provides both informative content and entertaining commentary from the Backyard Mechanic.