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2001 Toyota Corolla - intermittent CEL

Check Engine Light keeps coming off and on; especially after long idles at stop lights. The Mass Airflow sensor was replaced (11/19/19); Oxygen Sensor replaced (11/11/19); Intake Manifold Gasket and Throttle Body Mount Gasket replaced (9/28/2020). It was fine, but has now come back on and off a couple times since then.

Have the codes read and post back and please post the mileage.

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