#1 in Wilmington
T & T Foreign Automotive Services
Wilmington, NC
(910) 519-8662
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A steady light usually means get it checked soon. A flashing light means a misfire that can damage the catalytic converter — stop driving.
Yes, it's a common cause. Tighten it and drive a few days; if the light stays on, have the code read.
No — the code points to a system, not a part. Pay for a real diagnosis before replacing parts.