Q
does check engine light automatically fail emissions test
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Yes, a lit check engine light generally results in an automatic fail in emissions tests. This light, part of a car's onboard diagnostics system (OBD-II), illuminates when the vehicle's computer detects a problem affecting the engine or its emissions control systems. Since emissions tests are designed to ensure vehicles meet emission standards by limiting pollutants, a check engine light indicates there's likely an issue interfering with the car's ability to adhere to these standards. It's worth noting, though, standards and processes can vary by location. Addressing the underlying problem causing the light to come on is essential not only for passing emissions but also for maintaining the vehicle's performance and environmental compliance. It's advisable to have a professional diagnose and repair the issue before undergoing an emissions test.
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