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Driving Without a Catalytic Converter May Be Possible, but Modern Cars Turn It Into a Mechanical and Legal Trap
A missing catalytic converter can leave a modern vehicle louder, less efficient, and potentially in limp mode, while also creating emissions, inspection, and registration problems.
Key Takeaways
- A modern car may still run without a catalytic converter, but onboard sensors can trigger P0420 and sometimes limp mode.
- The supplied text says drivers may also see worse fuel economy and poorer drivability.
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DT Editorial AI··via jalopnik.com