2021 2.7 Ecoboost Rough Idle

[mario44mag]

Off a cold start and/or initial startup mine idles rough. But as it warms up the idle diminishes and it smooths out. It happens intermittently when driving and coming to a complete stop at intersections. It's not consistent. Happens pretty frequently if I run with regular 87 octane. I do shell out the extra $$$ and fill up with 89 (non-ethanol) and the rough idling happens mostly on cold starts. Any other 2.7 owners out there that can attest to this?

yes when i run ac

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[SilverSpur]

mine has no rough idle when started. I did have an issue with the ambient air temperature sensor by the air cleaner, It cost me about $30. Cleaned it and my MAFS sensor with brake spray cleaner every quarter.