How does the engine temperature affect the deceleration shut-off speed?

The engine temperature can influence the deceleration shut-off speed by affecting the engine's efficiency and fuel mixture. When the engine is cold, it may require a richer fuel mixture to operate smoothly, which could lead to a higher deceleration shut-off speed. Conversely, a well-warmed engine operates more efficiently, allowing for a smoother transition to lower speeds. Additionally, excessive engine temperatures can lead to performance issues, potentially impacting the deceleration characteristics.