Check engine light on a 99 integra?

If the check engine light on your 1999 Acura Integra is illuminated, it indicates that the vehicle's onboard diagnostics system has detected a problem. Common issues could range from a loose gas cap to more serious engine or emission system problems. To diagnose the issue, you can use an OBD-II scanner to read the trouble codes stored in the system. It's advisable to address any codes promptly to maintain vehicle performance and prevent further damage.