The check engine light reports a detected engine-management or emissions concern. A diagnostic code is a starting point for investigation, not proof that the named part needs replacement. Record when the light appeared and whether the vehicle's behavior changed.
A flashing light, rough running, or a pronounced loss of power calls for prompt attention. Stop safely if the vehicle is running poorly and consult the manual before continuing. Avoid clearing codes before the cause is checked; contact 12th Street Auto Care Center with the details.