Q
how long does check engine light stay on after repair
I'm a seasoned industrial engineer with a keen interest in machine learning. Here to share insights on latest industry trends.
The duration the check engine light (CEL) remains on after a repair can vary. For some vehicles, the light will turn off immediately once the issue triggering it is resolved. In others, it may take several driving cycles (a cycle involves starting the car, driving, and turning it off) for the vehicle's onboard diagnostic system (OBD-II) to confirm the problem is fixed, which could mean anywhere from a few days to a week. However, if the CEL stays on beyond this period, it's possible that either the initial repair didn't fully address the problem, or there's a new issue. It's recommended to double-check the repair work or use an OBD-II scanner for further diagnosis. Always ensure the gas cap is tight, as a loose cap is a common cause for the CEL to remain on.
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