It will be difficult to diagnose if the CEL turns itself off. The spark plugs may be a problem, or not. Were you at wide open throttle when this happened? If so, then it could be a 'misfire' detection.
You may want to consider buying a code reader like this one:
https://www.amazon.com/AUTOPHIX-ES610-Scanner-Diagnostic-Transmission/dp/B015E4UOWU/ref=sr_1_1_sspa?dchild=1&gclid=Cj0KCQjw_dWGBhDAARIsAMcYuJzPluGREEec-1LGw6OLBKeL1yilArVK2OkRK--PTpogYYCJSV6zotIaArR1EALw_wcB&hvadid=410039887885&hvdev=c&hvlocphy=9019584&hvnetw=g&hvqmt=e&hvrand=12817677113969178499&hvtargid=kwd-139239814090&hydadcr=7482_11110632&keywords=autophix+es610&qid=1624633545&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUE0T1hUS0dINkg0NjcmZW5jcnlwdGVkSWQ9QTAwMDMzNTMzOTJDVkEzRkdEOTA4JmVuY3J5cHRlZEFkSWQ9QTAyMzQ3OTgyUTgySjY2V0lESzNMJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
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Keeping it running is better than buying new
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